Browse Source

build: simplify mas patches (#36368)

* build: simplify mas patches

* build: re-add configs
Samuel Attard 1 year ago
parent
commit
dbe170c665

+ 1 - 9
patches/chromium/.patches

@@ -16,14 +16,7 @@ pepper_plugin_support.patch
 gtk_visibility.patch
 resource_file_conflict.patch
 scroll_bounce_flag.patch
-mas_blink_no_private_api.patch
-mas_no_private_api.patch
-mas-cgdisplayusesforcetogray.patch
-mas_disable_remote_layer.patch
-mas_disable_remote_accessibility.patch
-mas_disable_custom_window_frame.patch
-mas_avoid_usage_of_private_macos_apis.patch
-mas_use_public_apis_to_determine_if_a_font_is_a_system_font.patch
+mas_avoid_private_macos_api_usage.patch.patch
 add_didinstallconditionalfeatures.patch
 desktop_media_list.patch
 proxy_config_monitor.patch
@@ -111,7 +104,6 @@ fix_on-screen-keyboard_hides_on_input_blur_in_webview.patch
 preconnect_manager.patch
 fix_remove_caption-removing_style_call.patch
 build_allow_electron_to_use_exec_script.patch
-build_only_use_the_mas_build_config_in_the_required_components.patch
 chore_introduce_blocking_api_for_electron.patch
 chore_patch_out_partition_attribute_dcheck_for_webviews.patch
 expose_v8initializer_codegenerationcheckcallbackinmainthread.patch

+ 1 - 16
patches/chromium/build_gn.patch

@@ -6,15 +6,8 @@ Subject: build_gn.patch
 These are variables we add to the root BUILDCONFIG so that they're available
 everywhere, without having to import("//electron/.../flags.gni").
 
-Additionally, we add the `:mas_build` config to every compiled file so that
-the `MAS_BUILD` #define is available everywhere. This produces fewer patch
-conflicts when upgrading than it would if we added a specific config dependency
-only to those targets which had MAS_BUILD-relevant content in them. The
-tradeoff is that switching from MAS_BUILD to !MAS_BUILD or vice-versa will
-rebuild the entire tree.
-
 diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
-index 105e194dd1d4d4003736ce5cf963bc1290de669f..7f80b6fab53e62296351695429e3a6b9bb717300 100644
+index 105e194dd1d4d4003736ce5cf963bc1290de669f..420a13c16741037cf81de817c1808603e3fe6490 100644
 --- a/build/config/BUILDCONFIG.gn
 +++ b/build/config/BUILDCONFIG.gn
 @@ -123,6 +123,9 @@ if (current_os == "") {
@@ -27,11 +20,3 @@ index 105e194dd1d4d4003736ce5cf963bc1290de669f..7f80b6fab53e62296351695429e3a6b9
    # Set to enable the official build level of optimization. This has nothing
    # to do with branding, but enables an additional level of optimization above
    # release (!is_debug). This might be better expressed as a tri-state
-@@ -352,6 +355,7 @@ default_compiler_configs = [
-   "//build/config/compiler/pgo:default_pgo_flags",
-   "//build/config/coverage:default_coverage",
-   "//build/config/sanitizers:default_sanitizer_flags",
-+  "//electron/build/config:mas_build",
- ]
- 
- if (is_win) {

+ 0 - 332
patches/chromium/build_only_use_the_mas_build_config_in_the_required_components.patch

@@ -1,332 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Samuel Attard <[email protected]>
-Date: Mon, 14 Nov 2022 01:05:20 -0800
-Subject: build: only use the mas build config in the required components
-
-Before landing this patch should be split into the relevant MAS patches, or at least the patch this one partially reverts
-
-diff --git a/base/BUILD.gn b/base/BUILD.gn
-index 7f1993c93a8bb21b3ea3917fa4b71118c4307350..84a5643ead19b23abbb5c05cf315ac8fa2401938 100644
---- a/base/BUILD.gn
-+++ b/base/BUILD.gn
-@@ -1034,6 +1034,7 @@ component("base") {
-     "//build/config/compiler:prevent_unsafe_narrowing",
-     "//build/config/compiler:wexit_time_destructors",
-     "//build/config/compiler:wglobal_constructors",
-+    "//electron/build/config:mas_build",
-   ]
- 
-   deps = [
-diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
-index 7f80b6fab53e62296351695429e3a6b9bb717300..420a13c16741037cf81de817c1808603e3fe6490 100644
---- a/build/config/BUILDCONFIG.gn
-+++ b/build/config/BUILDCONFIG.gn
-@@ -355,7 +355,6 @@ default_compiler_configs = [
-   "//build/config/compiler/pgo:default_pgo_flags",
-   "//build/config/coverage:default_coverage",
-   "//build/config/sanitizers:default_sanitizer_flags",
--  "//electron/build/config:mas_build",
- ]
- 
- if (is_win) {
-diff --git a/components/os_crypt/sync/BUILD.gn b/components/os_crypt/sync/BUILD.gn
-index 445b70c2f381cde2c540fe386ecd34d30ad973b7..1a8072f6e0456569db8f435248e8051374212b4c 100644
---- a/components/os_crypt/sync/BUILD.gn
-+++ b/components/os_crypt/sync/BUILD.gn
-@@ -47,6 +47,7 @@ component("os_crypt") {
-       "keychain_password_mac.mm",
-       "os_crypt_mac.mm",
-     ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_win) {
-diff --git a/components/remote_cocoa/app_shim/BUILD.gn b/components/remote_cocoa/app_shim/BUILD.gn
-index 0369b1efab3783c0c61e086f82b3724772e4dff0..11a35c9f611fba4f5313994e41a440658cbe040a 100644
---- a/components/remote_cocoa/app_shim/BUILD.gn
-+++ b/components/remote_cocoa/app_shim/BUILD.gn
-@@ -16,6 +16,7 @@ component("app_shim") {
-   assert(is_mac)
- 
-   configs += [ ":app_shim_warnings" ]
-+  configs += ["//electron/build/config:mas_build"]
-   sources = [
-     "alert.h",
-     "alert.mm",
-diff --git a/components/viz/service/BUILD.gn b/components/viz/service/BUILD.gn
-index 53611e788cde9012ca566444e6c1ee05c99b921e..c5d018ae78b486ef4b3cc86a8091869f62aef534 100644
---- a/components/viz/service/BUILD.gn
-+++ b/components/viz/service/BUILD.gn
-@@ -335,6 +335,7 @@ viz_component("service") {
-         "frame_sinks/external_begin_frame_source_mac.h",
-       ]
-     }
-+    configs = ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_android || use_ozone) {
-@@ -593,6 +594,7 @@ viz_source_set("unit_tests") {
-       "display_embedder/software_output_device_mac_unittest.mm",
-     ]
-     frameworks = [ "IOSurface.framework" ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_win) {
-diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
-index 264aecf8928c820ac7624d798e834f8056bed405..83afe4327beefdf494f6b822da2f62a1cfb78484 100644
---- a/content/browser/BUILD.gn
-+++ b/content/browser/BUILD.gn
-@@ -52,6 +52,7 @@ source_set("browser") {
-     "//content:content_implementation",
-     "//v8:external_startup_data",
-   ]
-+  configs += ["//electron/build/config:mas_build"]
-   defines = []
-   libs = []
-   frameworks = []
-diff --git a/content/common/BUILD.gn b/content/common/BUILD.gn
-index ca5222bd7f79efa305ac1813f0904fb38a627f52..d0714b5630ec9899e792cbf2c406eb98db937dfa 100644
---- a/content/common/BUILD.gn
-+++ b/content/common/BUILD.gn
-@@ -182,6 +182,7 @@ source_set("common") {
-     "//content:content_implementation",
-     "//build/config:precompiled_headers",
-   ]
-+  configs += ["//electron/build/config:mas_build"]
- 
-   public_deps = [
-     ":mojo_bindings",
-diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
-index 19a85853ced691c017760ebc415d8a78ab5a970b..104fd36fc669db13b4af483f81ef991358df1e8f 100644
---- a/content/renderer/BUILD.gn
-+++ b/content/renderer/BUILD.gn
-@@ -224,6 +224,7 @@ target(link_target_type, "renderer") {
-   }
- 
-   configs += [ "//content:content_implementation" ]
-+  configs += ["//electron/build/config:mas_build"]
-   defines = []
- 
-   public_deps = [
-diff --git a/content/test/BUILD.gn b/content/test/BUILD.gn
-index 401517d9e298f508781f3b2c8b235483f9cc2a8a..980a1011555cae5ed1fba982cc45985a55884b64 100644
---- a/content/test/BUILD.gn
-+++ b/content/test/BUILD.gn
-@@ -482,6 +482,7 @@ static_library("test_support") {
-   configs += [
-     "//build/config:precompiled_headers",
-     "//v8:external_startup_data",
-+    "//electron/build/config:mas_build",
-   ]
- 
-   public_deps = [
-@@ -2916,6 +2917,7 @@ test("content_unittests") {
-   }
- 
-   configs += [ "//build/config:precompiled_headers" ]
-+  configs += ["//electron/build/config:mas_build"]
- 
-   public_deps = [ "//content:content_resources" ]
- 
-diff --git a/content/web_test/BUILD.gn b/content/web_test/BUILD.gn
-index 53f5e64a980a83606cf3a350d610118de86807a8..cc84b5f6088a02eecf131cce7c7133e1ceed8c3e 100644
---- a/content/web_test/BUILD.gn
-+++ b/content/web_test/BUILD.gn
-@@ -147,6 +147,8 @@ static_library("web_test_browser") {
-     "browser/web_test_tts_platform.h",
-   ]
- 
-+  configs += ["//electron/build/config:mas_build"]
-+
-   if (is_mac) {
-     sources += [ "browser/web_test_shell_platform_delegate_mac.mm" ]
-   } else if (toolkit_views && !is_castos) {
-diff --git a/device/bluetooth/BUILD.gn b/device/bluetooth/BUILD.gn
-index 6a662873b042a50f052e88bc849e3ef623963961..8b429cb2a5d6cd4555d7d56d3b072b05f87a30e6 100644
---- a/device/bluetooth/BUILD.gn
-+++ b/device/bluetooth/BUILD.gn
-@@ -242,6 +242,7 @@ component("bluetooth") {
-       "IOKit.framework",
-       "Foundation.framework",
-     ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_mac) {
-diff --git a/gpu/ipc/service/BUILD.gn b/gpu/ipc/service/BUILD.gn
-index 090bbd6f03c5749aaf763dac9e52c776f366c33d..5143231f5b3c95f55bf12aaedf253781eb59bb64 100644
---- a/gpu/ipc/service/BUILD.gn
-+++ b/gpu/ipc/service/BUILD.gn
-@@ -134,6 +134,7 @@ component("service") {
-       "QuartzCore.framework",
-     ]
-     defines += [ "GL_SILENCE_DEPRECATION" ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
-   if (is_ios) {
-     sources += [ "image_transport_surface_ios.mm" ]
-diff --git a/media/audio/BUILD.gn b/media/audio/BUILD.gn
-index c07f39acf8a733780b325b17d19718346136712d..c174e10763e8753257c7ebed6eee1fb6df818559 100644
---- a/media/audio/BUILD.gn
-+++ b/media/audio/BUILD.gn
-@@ -206,6 +206,7 @@ source_set("audio") {
-       "CoreMedia.framework",
-     ]
-     weak_frameworks = [ "ScreenCaptureKit.framework" ]  # macOS 13.0
-+    configs += ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_ios) {
-diff --git a/net/dns/BUILD.gn b/net/dns/BUILD.gn
-index f36bf682ffdeaf69da34a4f9e18465dde4e3a9a3..7f1a6fb71f78855bc771ee533b1715b246899c1c 100644
---- a/net/dns/BUILD.gn
-+++ b/net/dns/BUILD.gn
-@@ -177,6 +177,8 @@ source_set("dns") {
-     ":host_resolver_manager",
-     ":mdns_client",
-   ]
-+
-+  configs += ["//electron/build/config:mas_build"]
- }
- 
- # The standard API of net/dns.
-diff --git a/sandbox/mac/BUILD.gn b/sandbox/mac/BUILD.gn
-index 299a028f23314f479d2da8f914a5bdf34698d854..672dcb04dd3cf4e3cc71403f727a1dde91ad4402 100644
---- a/sandbox/mac/BUILD.gn
-+++ b/sandbox/mac/BUILD.gn
-@@ -39,6 +39,7 @@ component("seatbelt") {
-   ]
-   public_deps = [ "//third_party/protobuf:protobuf_lite" ]
-   defines = [ "SEATBELT_IMPLEMENTATION" ]
-+  configs += ["//electron/build/config:mas_build"]
- }
- 
- component("seatbelt_extension") {
-@@ -52,6 +53,7 @@ component("seatbelt_extension") {
-   libs = [ "sandbox" ]
-   public_deps = [ "//base" ]
-   defines = [ "SEATBELT_IMPLEMENTATION" ]
-+  configs += ["//electron/build/config:mas_build"]
- }
- 
- component("system_services") {
-@@ -66,6 +68,7 @@ component("system_services") {
-   deps = [ ":seatbelt_export" ]
-   public_deps = [ "//base" ]
-   defines = [ "SEATBELT_IMPLEMENTATION" ]
-+  configs += ["//electron/build/config:mas_build"]
- }
- 
- source_set("sandbox_unittests") {
-diff --git a/third_party/blink/renderer/core/BUILD.gn b/third_party/blink/renderer/core/BUILD.gn
-index 3c095a52ebca04905445843a536eb92103a326f2..97b413d1283d79af6954de2f04919a11c8e46689 100644
---- a/third_party/blink/renderer/core/BUILD.gn
-+++ b/third_party/blink/renderer/core/BUILD.gn
-@@ -312,6 +312,7 @@ component("core") {
-   configs -= core_config_remove
-   configs += core_config_add
-   configs += [ "//v8:external_startup_data" ]
-+  configs += ["//electron/build/config:mas_build"]
- 
-   public_deps = [
-     ":core_generated",
-diff --git a/ui/accelerated_widget_mac/BUILD.gn b/ui/accelerated_widget_mac/BUILD.gn
-index 3ead42e14ad9d41a30c5637678a3ac49296ce2a6..8dec61ee6a62e54ec3c8c5dd5e08601c28d04dfe 100644
---- a/ui/accelerated_widget_mac/BUILD.gn
-+++ b/ui/accelerated_widget_mac/BUILD.gn
-@@ -33,6 +33,8 @@ component("accelerated_widget_mac") {
-     "QuartzCore.framework",
-   ]
- 
-+  configs += ["//electron/build/config:mas_build"]
-+
-   if (is_ios) {
-     sources += [ "ca_layer_frame_sink_provider.h" ]
-   }
-diff --git a/ui/accessibility/platform/BUILD.gn b/ui/accessibility/platform/BUILD.gn
-index 4e23c38763184840a393589b3f55dcabb0db8121..e4ad30d0d7acecdca3a22fe05935a3406d784a95 100644
---- a/ui/accessibility/platform/BUILD.gn
-+++ b/ui/accessibility/platform/BUILD.gn
-@@ -251,6 +251,7 @@ component("platform") {
-       weak_frameworks = [
-         "Accessibility.framework",  # macOS 11
-       ]
-+      configs += ["//electron/build/config:mas_build"]
-     }
- 
-     if (use_atk) {
-diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
-index 39a960146504ac6034fe24593006d09ff9c667ac..67d0b5c26ef4788559efc696656dc88fc5b7e637 100644
---- a/ui/base/BUILD.gn
-+++ b/ui/base/BUILD.gn
-@@ -359,6 +359,7 @@ component("base") {
-       "interaction/element_tracker_mac.mm",
-       "resource/resource_bundle_mac.mm",
-     ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_apple) {
-diff --git a/ui/display/BUILD.gn b/ui/display/BUILD.gn
-index 301e8792b1259e7f7c4eb8e75a09a32f0d60e91f..36da16f203b14e872fb8153e8fc10c3f6725280d 100644
---- a/ui/display/BUILD.gn
-+++ b/ui/display/BUILD.gn
-@@ -68,6 +68,10 @@ component("display") {
-       "mac/display_link_mac.h",
-       "mac/screen_mac.mm",
-     ]
-+
-+    configs += [
-+      "//electron/build/config:mas_build"
-+    ]
-   }
- 
-   if (is_win) {
-diff --git a/ui/gfx/BUILD.gn b/ui/gfx/BUILD.gn
-index df601fcc40b4b8ca131a4f5a3ced5897075aa0f7..9d2edc62d95f04b6f1b3cd667940b1cb2dc728c3 100644
---- a/ui/gfx/BUILD.gn
-+++ b/ui/gfx/BUILD.gn
-@@ -204,6 +204,7 @@ component("gfx") {
-       "scoped_ns_graphics_context_save_gstate_mac.h",
-       "scoped_ns_graphics_context_save_gstate_mac.mm",
-     ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
-   if (is_win) {
-     sources += [
-diff --git a/ui/views/BUILD.gn b/ui/views/BUILD.gn
-index e1bc7d4e424a2bcfa51394edf8b22a8711d9ec95..d2e2370658a86c99581d9f4d009af552f71eac94 100644
---- a/ui/views/BUILD.gn
-+++ b/ui/views/BUILD.gn
-@@ -697,6 +697,7 @@ component("views") {
-       "IOSurface.framework",
-       "QuartzCore.framework",
-     ]
-+    configs += ["//electron/build/config:mas_build"]
-   }
- 
-   if (is_win) {
-@@ -1126,6 +1127,8 @@ source_set("test_support") {
-     "//testing/gtest",
-   ]
- 
-+  configs += ["//electron/build/config:mas_build"]
-+
-   if (is_win) {
-     sources += [
-       "test/desktop_window_tree_host_win_test_api.cc",
-diff --git a/ui/views/controls/webview/BUILD.gn b/ui/views/controls/webview/BUILD.gn
-index e3dd4fab3a1cac0138f8dac60247e0ea3343e87e..f31130eaa3719eda0da5b3f0e8c294775faf6bd4 100644
---- a/ui/views/controls/webview/BUILD.gn
-+++ b/ui/views/controls/webview/BUILD.gn
-@@ -19,6 +19,9 @@ component("webview") {
- 
-   if (is_mac) {
-     sources += [ "unhandled_keyboard_event_handler_mac.mm" ]
-+    configs += [
-+      "//electron/build/config:mas_build",
-+    ]
-   }
- 
-   if (is_win) {

+ 1 - 1
patches/chromium/feat_enable_offscreen_rendering_with_viz_compositor.patch

@@ -90,7 +90,7 @@ index 8af69cac78b7488d28f1f05ccb174793fe5148cd..9f74e511c263d147b5fbe81fe100d217
   private:
    const HWND hwnd_;
 diff --git a/components/viz/service/BUILD.gn b/components/viz/service/BUILD.gn
-index 9e66224b5cdb17a12c447eb67e2b1066d949128e..53611e788cde9012ca566444e6c1ee05c99b921e 100644
+index b0e2c1932e2d6e8a7d68b45dd2928b3a14e2afca..c5d018ae78b486ef4b3cc86a8091869f62aef534 100644
 --- a/components/viz/service/BUILD.gn
 +++ b/components/viz/service/BUILD.gn
 @@ -143,6 +143,8 @@ viz_component("service") {

+ 0 - 29
patches/chromium/mas-cgdisplayusesforcetogray.patch

@@ -1,29 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Jeremy Apthorp <[email protected]>
-Date: Thu, 20 Sep 2018 17:49:24 -0700
-Subject: mas: avoid usage of CGDisplayUsesForceToGray
-
-Removes usage of the CGDisplayUsesForceToGray private API.
-
-diff --git a/ui/display/mac/screen_mac.mm b/ui/display/mac/screen_mac.mm
-index a771c1c03fd1afe3a5e563b4421721a5ddc2eb93..a6cbdfcbeff30508d921d4637aac543dce9e8ad3 100644
---- a/ui/display/mac/screen_mac.mm
-+++ b/ui/display/mac/screen_mac.mm
-@@ -171,7 +171,17 @@ DisplayMac BuildDisplayForScreen(NSScreen* screen) {
-     display.set_color_depth(Display::kDefaultBitsPerPixel);
-     display.set_depth_per_component(Display::kDefaultBitsPerComponent);
-   }
-+#if IS_MAS_BUILD()
-+  // This is equivalent to the CGDisplayUsesForceToGray() API as at 2018-08-06,
-+  // but avoids usage of the private API.
-+  CFStringRef app = CFSTR("com.apple.CoreGraphics");
-+  CFStringRef key = CFSTR("DisplayUseForcedGray");
-+  Boolean key_valid = false;
-+  display.set_is_monochrome(
-+      CFPreferencesGetAppBooleanValue(key, app, &key_valid));
-+#else
-   display.set_is_monochrome(CGDisplayUsesForceToGray());
-+#endif
- 
-   // Query the display's refresh rate.
-   {

+ 1661 - 0
patches/chromium/mas_avoid_private_macos_api_usage.patch.patch

@@ -0,0 +1,1661 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Samuel Attard <[email protected]>
+Date: Thu, 20 Sep 2018 17:48:49 -0700
+Subject: mas: avoid private macOS API usage
+
+* Use the stub killring file when building blink
+* Remove usage of the following private APIs
+  * abort_report_np
+  * pthread_fchdir_np
+  * pthread_chdir_np
+  * SetApplicationIsDaemon
+  * _LSSetApplicationLaunchServicesServerConnectionStatus
+  * AreDeviceAndUserJoinedToDomain
+  * _CFIsObjC
+  * AudioDeviceDuck
+  * NSNextStepFrame
+  * NSThemeFrame
+  * NSTextInputReplacementRangeAttributeName
+* NSAccessibilityRemoteUIElement is unnecessary for Electron's use-case. We use it
+for progressive web apps (where the AXTree is in the browser process, but macOS
+needs to think it's coming from the PWA process). I think it can just be chopped
+out -- if there are any side-effects, we should be able to work around them.
+* CAContext removal
+  * For apps that spend a lot of time watching video (especially fullscreen video),
+    the power/battery usage will likely increase 1.5x to 2x. For something that is,
+    e.g, scrolling, it'll be smaller, more like 1.15x or 1.25x.
+
+    In terms of performance, the impact will likely be fairly small -- any app that
+    could hit 60fps before will likely still be able to hit 60fps. There may even be
+    cases where performance improves when disabling remote CoreAnimation (remote
+    CoreAnimation is really only about battery usage).
+* CTFontDescriptorIsSystemUIFont is a private API, we're using an
+_interesting_ technique in the MAS build to determine if the font is a
+system font by checking if it's kCTFontPriorityAttribute is set to
+system priority.
+
+diff --git a/base/BUILD.gn b/base/BUILD.gn
+index 7f1993c93a8bb21b3ea3917fa4b71118c4307350..84a5643ead19b23abbb5c05cf315ac8fa2401938 100644
+--- a/base/BUILD.gn
++++ b/base/BUILD.gn
+@@ -1034,6 +1034,7 @@ component("base") {
+     "//build/config/compiler:prevent_unsafe_narrowing",
+     "//build/config/compiler:wexit_time_destructors",
+     "//build/config/compiler:wglobal_constructors",
++    "//electron/build/config:mas_build",
+   ]
+ 
+   deps = [
+diff --git a/base/enterprise_util_mac.mm b/base/enterprise_util_mac.mm
+index 2bad2ed2f5205b3a2599aa3a620812aa32d52f87..ab3d4c953556d4f94075671436565a6c442f30d5 100644
+--- a/base/enterprise_util_mac.mm
++++ b/base/enterprise_util_mac.mm
+@@ -115,6 +115,14 @@ DeviceUserDomainJoinState AreDeviceAndUserJoinedToDomain() {
+     DeviceUserDomainJoinState state{.device_joined = false,
+                                     .user_joined = false};
+ 
++#if IS_MAS_BUILD()
++    return state;
++  }();
++
++  return state;
++}
++#else
++
+     @autoreleasepool {
+       ODSession* session = [ODSession defaultSession];
+       if (session == nil) {
+@@ -218,5 +226,6 @@ DeviceUserDomainJoinState AreDeviceAndUserJoinedToDomain() {
+ 
+   return state;
+ }
++#endif
+ 
+ }  // namespace base
+diff --git a/base/process/launch_mac.cc b/base/process/launch_mac.cc
+index b267bc2272fa82334a70d897a900f1ea37b1a598..967e22699bf565368704972c021f9b425a570f08 100644
+--- a/base/process/launch_mac.cc
++++ b/base/process/launch_mac.cc
+@@ -21,13 +21,18 @@
+ #include "base/threading/scoped_blocking_call.h"
+ #include "base/threading/thread_restrictions.h"
+ #include "base/trace_event/base_tracing.h"
++#if IS_MAS_BUILD()
++#include <sys/syscall.h>
++#endif
+ 
+ extern "C" {
+ // Changes the current thread's directory to a path or directory file
+ // descriptor.
++#if !IS_MAS_BUILD()
+ int pthread_chdir_np(const char* dir);
+ 
+ int pthread_fchdir_np(int fd);
++#endif
+ 
+ int responsibility_spawnattrs_setdisclaim(posix_spawnattr_t attrs,
+                                           int disclaim);
+@@ -99,13 +104,27 @@ class PosixSpawnFileActions {
+ 
+ #if !BUILDFLAG(IS_MAC)
+ int ChangeCurrentThreadDirectory(const char* path) {
++#if IS_MAS_BUILD()
++  #pragma clang diagnostic push
++  #pragma clang diagnostic ignored "-Wdeprecated-declarations"
++  return syscall(SYS___pthread_chdir, path);
++  #pragma clang diagnostic pop
++#else
+   return pthread_chdir_np(path);
++#endif
+ }
+ 
+ // The recommended way to unset a per-thread cwd is to set a new value to an
+ // invalid file descriptor, per libpthread-218.1.3/private/private.h.
+ int ResetCurrentThreadDirectory() {
++#if IS_MAS_BUILD()
++  #pragma clang diagnostic push
++  #pragma clang diagnostic ignored "-Wdeprecated-declarations"
++  return syscall(SYS___pthread_fchdir, -1);
++  #pragma clang diagnostic pop
++#else
+   return pthread_fchdir_np(-1);
++#endif
+ }
+ #endif
+ 
+@@ -226,7 +245,7 @@ Process LaunchProcess(const std::vector<std::string>& argv,
+     file_actions.Inherit(STDERR_FILENO);
+   }
+ 
+-#if BUILDFLAG(IS_MAC)
++#if 0
+   if (options.disclaim_responsibility) {
+     DPSXCHECK(responsibility_spawnattrs_setdisclaim(attr.get(), 1));
+   }
+diff --git a/base/process/process_info_mac.cc b/base/process/process_info_mac.cc
+index 94a028be3c315edc0056408ab9ab41b6b001a1c1..0d830234edb5621f57e39f4a951d357a23f677c1 100644
+--- a/base/process/process_info_mac.cc
++++ b/base/process/process_info_mac.cc
+@@ -8,15 +8,21 @@
+ #include <stdlib.h>
+ #include <unistd.h>
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ pid_t responsibility_get_pid_responsible_for_pid(pid_t);
+ }
++#endif
+ 
+ namespace base {
+ 
+ bool IsProcessSelfResponsible() {
++#if !IS_MAS_BUILD()
+   const pid_t pid = getpid();
+   return responsibility_get_pid_responsible_for_pid(pid) == pid;
++#else
++  return true;
++#endif
+ }
+ 
+ }  // namespace base
+diff --git a/components/os_crypt/sync/BUILD.gn b/components/os_crypt/sync/BUILD.gn
+index 445b70c2f381cde2c540fe386ecd34d30ad973b7..1a8072f6e0456569db8f435248e8051374212b4c 100644
+--- a/components/os_crypt/sync/BUILD.gn
++++ b/components/os_crypt/sync/BUILD.gn
+@@ -47,6 +47,7 @@ component("os_crypt") {
+       "keychain_password_mac.mm",
+       "os_crypt_mac.mm",
+     ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_win) {
+diff --git a/components/remote_cocoa/app_shim/BUILD.gn b/components/remote_cocoa/app_shim/BUILD.gn
+index 0369b1efab3783c0c61e086f82b3724772e4dff0..11a35c9f611fba4f5313994e41a440658cbe040a 100644
+--- a/components/remote_cocoa/app_shim/BUILD.gn
++++ b/components/remote_cocoa/app_shim/BUILD.gn
+@@ -16,6 +16,7 @@ component("app_shim") {
+   assert(is_mac)
+ 
+   configs += [ ":app_shim_warnings" ]
++  configs += ["//electron/build/config:mas_build"]
+   sources = [
+     "alert.h",
+     "alert.mm",
+diff --git a/components/remote_cocoa/app_shim/application_bridge.mm b/components/remote_cocoa/app_shim/application_bridge.mm
+index 5a096477c123a782341115f964c4975301ccaf9a..ecfbb3b405425af346a6ba6788fc1d8ff89760cd 100644
+--- a/components/remote_cocoa/app_shim/application_bridge.mm
++++ b/components/remote_cocoa/app_shim/application_bridge.mm
+@@ -51,6 +51,7 @@
+ 
+   // NativeWidgetNSWindowHostHelper:
+   id GetNativeViewAccessible() override {
++#if !IS_MAS_BUILD()
+     if (!remote_accessibility_element_) {
+       int64_t browser_pid = 0;
+       std::vector<uint8_t> element_token;
+@@ -61,6 +62,9 @@ id GetNativeViewAccessible() override {
+           ui::RemoteAccessibility::GetRemoteElementFromToken(element_token);
+     }
+     return remote_accessibility_element_;
++#else
++    return nil;
++#endif
+   }
+   void DispatchKeyEvent(ui::KeyEvent* event) override {
+     bool event_handled = false;
+@@ -99,7 +103,9 @@ void GetWordAt(const gfx::Point& location_in_content,
+   mojo::AssociatedRemote<mojom::TextInputHost> text_input_host_remote_;
+ 
+   std::unique_ptr<NativeWidgetNSWindowBridge> bridge_;
++#if !IS_MAS_BUILD()
+   NSAccessibilityRemoteUIElement* __strong remote_accessibility_element_;
++#endif
+ };
+ 
+ }  // namespace
+diff --git a/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm b/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm
+index b8eb13a42aa41143412b9a01f2716a3608b968fb..8eaccd4ce7e484aef1b4517935bc4ba2fa4a1ea4 100644
+--- a/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm
++++ b/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm
+@@ -9,6 +9,7 @@
+ #include "components/remote_cocoa/app_shim/native_widget_ns_window_bridge.h"
+ #include "components/remote_cocoa/common/native_widget_ns_window_host.mojom.h"
+ 
++#if !IS_MAS_BUILD()
+ @interface NSWindow (PrivateBrowserNativeWidgetAPI)
+ + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle;
+ @end
+@@ -65,10 +66,13 @@ - (BOOL)_shouldCenterTrafficLights {
+ 
+ @end
+ 
++#endif  // MAS_BUILD
++
+ @implementation BrowserNativeWidgetWindow
+ 
+ // NSWindow (PrivateAPI) overrides.
+ 
++#if !IS_MAS_BUILD()
+ + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle {
+   // - NSThemeFrame and its subclasses will be nil if it's missing at runtime.
+   if ([BrowserWindowFrame class])
+@@ -115,6 +119,8 @@ - (BOOL)_usesCustomDrawing {
+   return NO;
+ }
+ 
++#endif  // MAS_BUILD
++
+ // Handle "Move focus to the window toolbar" configured in System Preferences ->
+ // Keyboard -> Shortcuts -> Keyboard. Usually Ctrl+F5. The argument (|unknown|)
+ // tends to just be nil.
+diff --git a/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm b/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm
+index 3a815ebf505bd95fa7f6b61ba433d98fbfe20225..dbbebbdc1735bc14224dfcde0b7fe3a6fd9f9e40 100644
+--- a/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm
++++ b/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm
+@@ -4,6 +4,8 @@
+ 
+ #import "components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.h"
+ 
++#if !IS_MAS_BUILD()
++
+ @interface NSWindow (PrivateAPI)
+ + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle;
+ @end
+@@ -18,8 +20,12 @@ - (CGFloat)_titlebarHeight {
+ }
+ @end
+ 
++#endif  // MAS_BUILD
++
+ @implementation NativeWidgetMacFramelessNSWindow
+ 
++#if !IS_MAS_BUILD()
++
+ + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle {
+   if ([NativeWidgetMacFramelessNSWindowFrame class]) {
+     return [NativeWidgetMacFramelessNSWindowFrame class];
+@@ -27,4 +33,6 @@ + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle {
+   return [super frameViewClassForStyleMask:windowStyle];
+ }
+ 
++#endif  // MAS_BUILD
++
+ @end
+diff --git a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h
+index 085d9821933390c781fe11d441910501bf22d601..6c79434e2a5b59267c9801ac23c318c9c320f019 100644
+--- a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h
++++ b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h
+@@ -17,6 +17,7 @@ class NativeWidgetNSWindowBridge;
+ 
+ @protocol WindowTouchBarDelegate;
+ 
++#if !IS_MAS_BUILD()
+ // Weak lets Chrome launch even if a future macOS doesn't have the below classes
+ WEAK_IMPORT_ATTRIBUTE
+ @interface NSNextStepFrame : NSView
+@@ -33,6 +34,7 @@ REMOTE_COCOA_APP_SHIM_EXPORT
+ REMOTE_COCOA_APP_SHIM_EXPORT
+ @interface NativeWidgetMacNSWindowTitledFrame : NSThemeFrame
+ @end
++#endif
+ 
+ // The NSWindow used by BridgedNativeWidget. Provides hooks into AppKit that
+ // can only be accomplished by overriding methods.
+diff --git a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm
+index 6e837d66209e6322324227bc596e40e56fccc495..3c3c5db57cfaba8e59867e74b81b4fad1cf7a8ed 100644
+--- a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm
++++ b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm
+@@ -101,7 +101,9 @@ void OrderChildWindow(NSWindow* child_window,
+ }  // namespace
+ 
+ @interface NSWindow (Private)
++#if !IS_MAS_BUILD()
+ + (Class)frameViewClassForStyleMask:(NSWindowStyleMask)windowStyle;
++#endif
+ - (BOOL)hasKeyAppearance;
+ - (long long)_resizeDirectionForMouseLocation:(CGPoint)location;
+ - (BOOL)_isConsideredOpenForPersistentState;
+@@ -139,6 +141,8 @@ - (void)cr_mouseDownOnFrameView:(NSEvent*)event {
+ }
+ @end
+ 
++#if !IS_MAS_BUILD()
++
+ @implementation NativeWidgetMacNSWindowTitledFrame
+ - (void)mouseDown:(NSEvent*)event {
+   if (self.window.isMovable)
+@@ -165,6 +169,8 @@ - (BOOL)usesCustomDrawing {
+ }
+ @end
+ 
++#endif  // MAS_BUILD
++
+ @implementation NativeWidgetMacNSWindow {
+  @private
+   CommandDispatcher* __strong _commandDispatcher;
+@@ -353,6 +359,8 @@ - (NSAccessibilityRole)accessibilityRole {
+ 
+ // NSWindow overrides.
+ 
++#if !IS_MAS_BUILD()
++
+ + (Class)frameViewClassForStyleMask:(NSWindowStyleMask)windowStyle {
+   if (windowStyle & NSWindowStyleMaskTitled) {
+     if (Class customFrame = [NativeWidgetMacNSWindowTitledFrame class])
+@@ -364,6 +372,8 @@ + (Class)frameViewClassForStyleMask:(NSWindowStyleMask)windowStyle {
+   return [super frameViewClassForStyleMask:windowStyle];
+ }
+ 
++#endif
++
+ - (BOOL)_isTitleHidden {
+   bool shouldShowWindowTitle = YES;
+   if (_bridge)
+diff --git a/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm b/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm
+index 053b8a2182778b469941116eab3acd5fd6fd8099..d085258d5970b37215fe0d5591e6c0306401a172 100644
+--- a/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm
++++ b/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm
+@@ -600,10 +600,12 @@ NSUInteger CountBridgedWindows(NSArray* child_windows) {
+   // this should be treated as an error and caught early.
+   CHECK(bridged_view_);
+ 
++#if !IS_MAS_BUILD()
+   // Send the accessibility tokens for the NSView now that it exists.
+   host_->SetRemoteAccessibilityTokens(
+       ui::RemoteAccessibility::GetTokenForLocalElement(window_),
+       ui::RemoteAccessibility::GetTokenForLocalElement(bridged_view_));
++#endif
+ 
+   // Beware: This view was briefly removed (in favor of a bare CALayer) in
+   // https://crrev.com/c/1236675. The ordering of unassociated layers relative
+diff --git a/components/viz/service/BUILD.gn b/components/viz/service/BUILD.gn
+index 9e66224b5cdb17a12c447eb67e2b1066d949128e..b0e2c1932e2d6e8a7d68b45dd2928b3a14e2afca 100644
+--- a/components/viz/service/BUILD.gn
++++ b/components/viz/service/BUILD.gn
+@@ -333,6 +333,7 @@ viz_component("service") {
+         "frame_sinks/external_begin_frame_source_mac.h",
+       ]
+     }
++    configs = ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_android || use_ozone) {
+@@ -591,6 +592,7 @@ viz_source_set("unit_tests") {
+       "display_embedder/software_output_device_mac_unittest.mm",
+     ]
+     frameworks = [ "IOSurface.framework" ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_win) {
+diff --git a/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm b/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm
+index 76be676717e62c429319338c6115be89f2dfa424..18a5fd3c87b08c95d668b70c9b8f7a76413a75bb 100644
+--- a/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm
++++ b/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm
+@@ -86,8 +86,10 @@ id GetFocusedBrowserAccessibilityElement() override {
+     return nil;
+   }
+   void SetAccessibilityWindow(NSWindow* window) override {
++#if !IS_MAS_BUILD()
+     host_->SetRemoteAccessibilityWindowToken(
+         ui::RemoteAccessibility::GetTokenForLocalElement(window));
++#endif
+   }
+ 
+   void ForwardKeyboardEvent(const content::NativeWebKeyboardEvent& key_event,
+diff --git a/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm b/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm
+index 47afd2553bf76b5b185a4be131196d90cf9cad44..d6f9998890d7a83a8fb221691aa2f1e761461d52 100644
+--- a/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm
++++ b/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm
+@@ -2019,15 +2019,21 @@ - (NSAccessibilityRole)accessibilityRole {
+ // Since this implementation doesn't have to wait any IPC calls, this doesn't
+ // make any key-typing jank. --hbono 7/23/09
+ //
++#if !IS_MAS_BUILD()
+ extern "C" {
+ extern NSString* NSTextInputReplacementRangeAttributeName;
+ }
++#endif
+ 
+ - (NSArray*)validAttributesForMarkedText {
+   // This code is just copied from WebKit except renaming variables.
+   static NSArray* const kAttributes = @[
+     NSUnderlineStyleAttributeName, NSUnderlineColorAttributeName,
++#if !IS_MAS_BUILD()
+     NSMarkedClauseSegmentAttributeName, NSTextInputReplacementRangeAttributeName
++#else
++    NSMarkedClauseSegmentAttributeName
++#endif
+   ];
+   return kAttributes;
+ }
+diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
+index 34e00e884f05ed43d6966372479d268ac4b681ed..f88d207fc9c8d831334ef0c761099799ed3928d8 100644
+--- a/content/browser/BUILD.gn
++++ b/content/browser/BUILD.gn
+@@ -52,6 +52,7 @@ source_set("browser") {
+     "//content:content_implementation",
+     "//v8:external_startup_data",
+   ]
++  configs += ["//electron/build/config:mas_build"]
+   defines = []
+   libs = []
+   frameworks = []
+diff --git a/content/browser/accessibility/browser_accessibility_manager_mac.mm b/content/browser/accessibility/browser_accessibility_manager_mac.mm
+index 5a6706495ed2a8f1cd781da9bde8572318bf6897..afd4d1f728a7f056e49b2ecb006c5a05388d3409 100644
+--- a/content/browser/accessibility/browser_accessibility_manager_mac.mm
++++ b/content/browser/accessibility/browser_accessibility_manager_mac.mm
+@@ -21,7 +21,9 @@
+ #include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
+ #include "ui/accessibility/ax_role_properties.h"
+ #include "ui/accessibility/platform/ax_private_webkit_constants_mac.h"
++#if !IS_MAS_BUILD()
+ #include "ui/base/cocoa/remote_accessibility_api.h"
++#endif
+ 
+ namespace {
+ 
+@@ -224,6 +226,7 @@ void PostAnnouncementNotification(NSString* announcement,
+         return;
+       }
+ 
++#if !IS_MAS_BUILD()
+       BrowserAccessibilityManager* root_manager = GetManagerForRootFrame();
+       if (root_manager) {
+         BrowserAccessibilityManagerMac* root_manager_mac =
+@@ -246,6 +249,7 @@ void PostAnnouncementNotification(NSString* announcement,
+           return;
+         }
+       }
++#endif
+ 
+       // Use native VoiceOver support for live regions.
+       BrowserAccessibilityCocoa* retained_node = native_node;
+@@ -632,6 +636,7 @@ void PostAnnouncementNotification(NSString* announcement,
+     return window == [NSApp accessibilityFocusedWindow];
+   }
+ 
++#if !IS_MAS_BUILD()
+   // TODO(accessibility): We need a solution to the problem described below.
+   // If the window is NSAccessibilityRemoteUIElement, there are some challenges:
+   // 1. NSApp is the browser which spawned the PWA, and what it considers the
+@@ -660,6 +665,7 @@ void PostAnnouncementNotification(NSString* announcement,
+   if ([window isKindOfClass:[NSAccessibilityRemoteUIElement class]]) {
+     return true;
+   }
++#endif
+ 
+   return false;
+ }
+diff --git a/content/browser/renderer_host/render_widget_host_view_mac.h b/content/browser/renderer_host/render_widget_host_view_mac.h
+index 90d8ab3119b469e62ca771aaeb3d6b5c13d79775..825d46c85a44adb68adefe4adc0dd926e71c9129 100644
+--- a/content/browser/renderer_host/render_widget_host_view_mac.h
++++ b/content/browser/renderer_host/render_widget_host_view_mac.h
+@@ -50,7 +50,9 @@ class ScopedPasswordInputEnabler;
+ 
+ @protocol RenderWidgetHostViewMacDelegate;
+ 
++#if !IS_MAS_BUILD()
+ @class NSAccessibilityRemoteUIElement;
++#endif
+ @class RenderWidgetHostViewCocoa;
+ @class CursorAccessibilityScaleFactorObserver;
+ 
+@@ -676,9 +678,11 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
+   // EnsureSurfaceSynchronizedForWebTest().
+   uint32_t latest_capture_sequence_number_ = 0u;
+ 
++#if !IS_MAS_BUILD()
+   // Remote accessibility objects corresponding to the NSWindow that this is
+   // displayed to the user in.
+   NSAccessibilityRemoteUIElement* __strong remote_window_accessible_;
++#endif
+ 
+   // Used to force the NSApplication's focused accessibility element to be the
+   // content::BrowserAccessibilityCocoa accessibility tree when the NSView for
+diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
+index c260544133059b2104c1185b4708494ff1bde286..0d752ae48eb5f822dd80c369b726a7d411d71c78 100644
+--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
++++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
+@@ -272,8 +272,10 @@
+ void RenderWidgetHostViewMac::MigrateNSViewBridge(
+     remote_cocoa::mojom::Application* remote_cocoa_application,
+     uint64_t parent_ns_view_id) {
++#if !IS_MAS_BUILD()
+   // Destroy the previous remote accessibility element.
+   remote_window_accessible_ = nil;
++#endif
+ 
+   // Reset `ns_view_` before resetting `remote_ns_view_` to avoid dangling
+   // pointers. `ns_view_` gets reinitialized later in this method.
+@@ -1639,8 +1641,10 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
+ 
+ gfx::NativeViewAccessible
+ RenderWidgetHostViewMac::AccessibilityGetNativeViewAccessibleForWindow() {
++#if !IS_MAS_BUILD()
+   if (remote_window_accessible_)
+     return remote_window_accessible_;
++#endif
+   return [GetInProcessNSView() window];
+ }
+ 
+@@ -1685,9 +1689,11 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
+ }
+ 
+ void RenderWidgetHostViewMac::SetAccessibilityWindow(NSWindow* window) {
++#if !IS_MAS_BUILD()
+   // When running in-process, just use the NSView's NSWindow as its own
+   // accessibility element.
+   remote_window_accessible_ = nil;
++#endif
+ }
+ 
+ bool RenderWidgetHostViewMac::SyncIsWidgetForMainFrame(
+@@ -2194,12 +2200,14 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
+ 
+ void RenderWidgetHostViewMac::SetRemoteAccessibilityWindowToken(
+     const std::vector<uint8_t>& window_token) {
++#if !IS_MAS_BUILD()
+   if (window_token.empty()) {
+     remote_window_accessible_ = nil;
+   } else {
+     remote_window_accessible_ =
+         ui::RemoteAccessibility::GetRemoteElementFromToken(window_token);
+   }
++#endif
+ }
+ 
+ ///////////////////////////////////////////////////////////////////////////////
+diff --git a/content/common/BUILD.gn b/content/common/BUILD.gn
+index ca5222bd7f79efa305ac1813f0904fb38a627f52..d0714b5630ec9899e792cbf2c406eb98db937dfa 100644
+--- a/content/common/BUILD.gn
++++ b/content/common/BUILD.gn
+@@ -182,6 +182,7 @@ source_set("common") {
+     "//content:content_implementation",
+     "//build/config:precompiled_headers",
+   ]
++  configs += ["//electron/build/config:mas_build"]
+ 
+   public_deps = [
+     ":mojo_bindings",
+diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
+index 19a85853ced691c017760ebc415d8a78ab5a970b..104fd36fc669db13b4af483f81ef991358df1e8f 100644
+--- a/content/renderer/BUILD.gn
++++ b/content/renderer/BUILD.gn
+@@ -224,6 +224,7 @@ target(link_target_type, "renderer") {
+   }
+ 
+   configs += [ "//content:content_implementation" ]
++  configs += ["//electron/build/config:mas_build"]
+   defines = []
+ 
+   public_deps = [
+diff --git a/content/renderer/renderer_main_platform_delegate_mac.mm b/content/renderer/renderer_main_platform_delegate_mac.mm
+index d4db3b179725cb96bcbd0f73db7d52ef8b7522db..6afbf1defb0591d9fe59a81e6c74746d3e15f081 100644
+--- a/content/renderer/renderer_main_platform_delegate_mac.mm
++++ b/content/renderer/renderer_main_platform_delegate_mac.mm
+@@ -10,9 +10,11 @@
+ #include "sandbox/mac/seatbelt.h"
+ #include "sandbox/mac/system_services.h"
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ CGError CGSSetDenyWindowServerConnections(bool);
+ }
++#endif
+ 
+ namespace content {
+ 
+@@ -22,6 +24,7 @@
+ // verifies there are no existing open connections), and then indicates that
+ // Chrome should continue execution without access to launchservicesd.
+ void DisableSystemServices() {
++#if !IS_MAS_BUILD()
+   // Tell the WindowServer that we don't want to make any future connections.
+   // This will return Success as long as there are no open connections, which
+   // is what we want.
+@@ -30,6 +33,7 @@ void DisableSystemServices() {
+ 
+   sandbox::DisableLaunchServices();
+   sandbox::DisableCoreServicesCheckFix();
++#endif
+ }
+ 
+ }  // namespace
+diff --git a/content/renderer/theme_helper_mac.mm b/content/renderer/theme_helper_mac.mm
+index a119b4439bfb9218c7aaf09dca8e78527da7f20d..faa813b003940280c6eeb87e70173019bdd5280c 100644
+--- a/content/renderer/theme_helper_mac.mm
++++ b/content/renderer/theme_helper_mac.mm
+@@ -8,10 +8,11 @@
+ 
+ #include "base/strings/sys_string_conversions.h"
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ bool CGFontRenderingGetFontSmoothingDisabled(void);
+ }
+-
++#endif
+ namespace content {
+ 
+ void SystemColorsDidChange(int aqua_color_variant) {
+@@ -24,8 +25,18 @@ void SystemColorsDidChange(int aqua_color_variant) {
+ }
+ 
+ bool IsSubpixelAntialiasingAvailable() {
++#if !IS_MAS_BUILD()
+   // See https://trac.webkit.org/changeset/239306/webkit for more info.
+   return !CGFontRenderingGetFontSmoothingDisabled();
++#else
++  NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
++  NSString *default_key = @"CGFontRenderingGetFontSmoothingDisabled";
++  // Check that key exists since boolForKey defaults to NO when the
++  // key is missing and this key in fact defaults to YES;
++  if ([defaults objectForKey:default_key] == nil)
++    return false;
++  return ![defaults boolForKey:default_key];
++#endif
+ }
+ 
+ }  // namespace content
+diff --git a/content/test/BUILD.gn b/content/test/BUILD.gn
+index 401517d9e298f508781f3b2c8b235483f9cc2a8a..980a1011555cae5ed1fba982cc45985a55884b64 100644
+--- a/content/test/BUILD.gn
++++ b/content/test/BUILD.gn
+@@ -482,6 +482,7 @@ static_library("test_support") {
+   configs += [
+     "//build/config:precompiled_headers",
+     "//v8:external_startup_data",
++    "//electron/build/config:mas_build",
+   ]
+ 
+   public_deps = [
+@@ -2916,6 +2917,7 @@ test("content_unittests") {
+   }
+ 
+   configs += [ "//build/config:precompiled_headers" ]
++  configs += ["//electron/build/config:mas_build"]
+ 
+   public_deps = [ "//content:content_resources" ]
+ 
+diff --git a/content/web_test/BUILD.gn b/content/web_test/BUILD.gn
+index 53f5e64a980a83606cf3a350d610118de86807a8..cc84b5f6088a02eecf131cce7c7133e1ceed8c3e 100644
+--- a/content/web_test/BUILD.gn
++++ b/content/web_test/BUILD.gn
+@@ -147,6 +147,8 @@ static_library("web_test_browser") {
+     "browser/web_test_tts_platform.h",
+   ]
+ 
++  configs += ["//electron/build/config:mas_build"]
++
+   if (is_mac) {
+     sources += [ "browser/web_test_shell_platform_delegate_mac.mm" ]
+   } else if (toolkit_views && !is_castos) {
+diff --git a/device/bluetooth/BUILD.gn b/device/bluetooth/BUILD.gn
+index 6a662873b042a50f052e88bc849e3ef623963961..8b429cb2a5d6cd4555d7d56d3b072b05f87a30e6 100644
+--- a/device/bluetooth/BUILD.gn
++++ b/device/bluetooth/BUILD.gn
+@@ -242,6 +242,7 @@ component("bluetooth") {
+       "IOKit.framework",
+       "Foundation.framework",
+     ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_mac) {
+diff --git a/device/bluetooth/bluetooth_adapter_mac.mm b/device/bluetooth/bluetooth_adapter_mac.mm
+index 37ce08d9c11de4e53dbf9a9db2e74f1b12adafcf..bb9433fcb49d40adbe9ef8fdddfde49fc2809a78 100644
+--- a/device/bluetooth/bluetooth_adapter_mac.mm
++++ b/device/bluetooth/bluetooth_adapter_mac.mm
+@@ -37,6 +37,7 @@
+ #include "device/bluetooth/bluetooth_socket_mac.h"
+ #include "device/bluetooth/public/cpp/bluetooth_address.h"
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ // Undocumented IOBluetooth Preference API [1]. Used by `blueutil` [2] and
+ // `Karabiner` [3] to programmatically control the Bluetooth state. Calling the
+@@ -50,6 +51,7 @@
+ // [4] https://support.apple.com/kb/PH25091
+ void IOBluetoothPreferenceSetControllerPowerState(int state);
+ }
++#endif
+ 
+ namespace {
+ 
+@@ -93,8 +95,10 @@ bool IsDeviceSystemPaired(const std::string& device_address) {
+     : controller_state_function_(
+           base::BindRepeating(&BluetoothAdapterMac::GetHostControllerState,
+                               base::Unretained(this))),
++#if !IS_MAS_BUILD()
+       power_state_function_(
+           base::BindRepeating(IOBluetoothPreferenceSetControllerPowerState)),
++#endif
+       classic_discovery_manager_(
+           BluetoothDiscoveryManagerMac::CreateClassic(this)),
+       device_paired_status_callback_(
+@@ -244,8 +248,12 @@ bool IsDeviceSystemPaired(const std::string& device_address) {
+ }
+ 
+ bool BluetoothAdapterMac::SetPoweredImpl(bool powered) {
++#if !IS_MAS_BUILD()
+   power_state_function_.Run(base::strict_cast<int>(powered));
+   return true;
++#else
++  return false;
++#endif
+ }
+ 
+ base::WeakPtr<BluetoothLowEnergyAdapterApple>
+diff --git a/gpu/ipc/service/BUILD.gn b/gpu/ipc/service/BUILD.gn
+index 090bbd6f03c5749aaf763dac9e52c776f366c33d..5143231f5b3c95f55bf12aaedf253781eb59bb64 100644
+--- a/gpu/ipc/service/BUILD.gn
++++ b/gpu/ipc/service/BUILD.gn
+@@ -134,6 +134,7 @@ component("service") {
+       "QuartzCore.framework",
+     ]
+     defines += [ "GL_SILENCE_DEPRECATION" ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+   if (is_ios) {
+     sources += [ "image_transport_surface_ios.mm" ]
+diff --git a/gpu/ipc/service/image_transport_surface_overlay_mac.h b/gpu/ipc/service/image_transport_surface_overlay_mac.h
+index d1deb3d7d7d587b36bc8c19cf3f331a0ec6764dd..263c5f3446dab67b9f8d3be4d08eadbaa749dc1d 100644
+--- a/gpu/ipc/service/image_transport_surface_overlay_mac.h
++++ b/gpu/ipc/service/image_transport_surface_overlay_mac.h
+@@ -23,7 +23,9 @@
+ #include "ui/display/types/display_constants.h"
+ #endif
+ 
++#if !IS_MAS_BUILD()
+ @class CAContext;
++#endif
+ @class CALayer;
+ 
+ namespace ui {
+@@ -76,8 +78,10 @@ class ImageTransportSurfaceOverlayMacEGL : public gl::Presenter {
+                        const gfx::PresentationFeedback& feedback);
+   void PopulateCALayerParameters();
+ 
++#if !IS_MAS_BUILD()
+   const bool use_remote_layer_api_;
+   CAContext* __strong ca_context_;
++#endif
+   std::unique_ptr<ui::CALayerTreeCoordinator> ca_layer_tree_coordinator_;
+ 
+   gfx::Size pixel_size_;
+diff --git a/gpu/ipc/service/image_transport_surface_overlay_mac.mm b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
+index caa7b447f79d837f100b3ee8bb4063145811b9bc..5c510fafb2891759cc12711286e3c34f994411bd 100644
+--- a/gpu/ipc/service/image_transport_surface_overlay_mac.mm
++++ b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
+@@ -52,12 +52,16 @@
+ }  // namespace
+ 
+ ImageTransportSurfaceOverlayMacEGL::ImageTransportSurfaceOverlayMacEGL()
+-    : use_remote_layer_api_(ui::RemoteLayerAPISupported()),
++    :
++#if !IS_MAS_BUILD()
++    use_remote_layer_api_(ui::RemoteLayerAPISupported()),
++#endif
+       scale_factor_(1),
+       weak_ptr_factory_(this) {
+   static bool av_disabled_at_command_line =
+       !base::FeatureList::IsEnabled(kAVFoundationOverlays);
+ 
++#if !IS_MAS_BUILD()
+   ca_layer_tree_coordinator_ = std::make_unique<ui::CALayerTreeCoordinator>(
+       use_remote_layer_api_, !av_disabled_at_command_line);
+ 
+@@ -78,6 +82,10 @@
+ #endif
+     ca_context_.layer = ca_layer_tree_coordinator_->GetCALayerForDisplay();
+   }
++#else
++  ca_layer_tree_coordinator_ = std::make_unique<ui::CALayerTreeCoordinator>(
++      /*allow_remote_layers=*/false, !av_disabled_at_command_line);
++#endif
+ }
+ 
+ ImageTransportSurfaceOverlayMacEGL::~ImageTransportSurfaceOverlayMacEGL() {
+@@ -195,9 +203,13 @@
+     TRACE_EVENT_INSTANT2("test_gpu", "SwapBuffers", TRACE_EVENT_SCOPE_THREAD,
+                          "GLImpl", static_cast<int>(gl::GetGLImplementation()),
+                          "width", pixel_size_.width());
++#if !IS_MAS_BUILD()
+     if (use_remote_layer_api_) {
+       params.ca_context_id = [ca_context_ contextId];
+     } else {
++#else
++    if (true) {
++#endif
+       IOSurfaceRef io_surface =
+           ca_layer_tree_coordinator_->GetIOSurfaceForDisplay();
+       if (io_surface) {
+diff --git a/media/audio/BUILD.gn b/media/audio/BUILD.gn
+index c07f39acf8a733780b325b17d19718346136712d..c174e10763e8753257c7ebed6eee1fb6df818559 100644
+--- a/media/audio/BUILD.gn
++++ b/media/audio/BUILD.gn
+@@ -206,6 +206,7 @@ source_set("audio") {
+       "CoreMedia.framework",
+     ]
+     weak_frameworks = [ "ScreenCaptureKit.framework" ]  # macOS 13.0
++    configs += ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_ios) {
+diff --git a/media/audio/mac/audio_low_latency_input_mac.cc b/media/audio/mac/audio_low_latency_input_mac.cc
+index 34935789d56a6f65926599f053a7bc1b2020ad12..67270c5c75492e9d4c91d33a1eca5caf1cc43ace 100644
+--- a/media/audio/mac/audio_low_latency_input_mac.cc
++++ b/media/audio/mac/audio_low_latency_input_mac.cc
+@@ -30,19 +30,23 @@
+ 
+ namespace {
+ extern "C" {
++#if !IS_MAS_BUILD()
+ // See:
+ // https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/PAL/pal/spi/cf/CoreAudioSPI.h?rev=228264
+ OSStatus AudioDeviceDuck(AudioDeviceID inDevice,
+                          Float32 inDuckedLevel,
+                          const AudioTimeStamp* __nullable inStartTime,
+                          Float32 inRampDuration) __attribute__((weak_import));
++#endif
+ }
+ 
+ void UndoDucking(AudioDeviceID output_device_id) {
++#if !IS_MAS_BUILD()
+   if (AudioDeviceDuck != nullptr) {
+     // Ramp the volume back up over half a second.
+     AudioDeviceDuck(output_device_id, 1.0, nullptr, 0.5);
+   }
++#endif
+ }
+ 
+ }  // namespace
+diff --git a/media/audio/mac/audio_manager_mac.cc b/media/audio/mac/audio_manager_mac.cc
+index b3e06372457f57a8c835a790691d8f492baecdec..b27691313cb15d663c903d05cdef20e44270c690 100644
+--- a/media/audio/mac/audio_manager_mac.cc
++++ b/media/audio/mac/audio_manager_mac.cc
+@@ -991,7 +991,7 @@ AudioParameters AudioManagerMac::GetPreferredOutputStreamParameters(
+ 
+ void AudioManagerMac::InitializeOnAudioThread() {
+   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
+-  InitializeCoreAudioDispatchOverride();
++  // InitializeCoreAudioDispatchOverride();
+   power_observer_ = std::make_unique<AudioPowerObserver>();
+ }
+ 
+diff --git a/net/dns/BUILD.gn b/net/dns/BUILD.gn
+index f36bf682ffdeaf69da34a4f9e18465dde4e3a9a3..7f1a6fb71f78855bc771ee533b1715b246899c1c 100644
+--- a/net/dns/BUILD.gn
++++ b/net/dns/BUILD.gn
+@@ -177,6 +177,8 @@ source_set("dns") {
+     ":host_resolver_manager",
+     ":mdns_client",
+   ]
++
++  configs += ["//electron/build/config:mas_build"]
+ }
+ 
+ # The standard API of net/dns.
+diff --git a/net/dns/dns_config_service_posix.cc b/net/dns/dns_config_service_posix.cc
+index a93e7cd74d2a9d692304ecf10279fae8e96bb695..3506d6ca555701bad6623cc1c614e0081892e42b 100644
+--- a/net/dns/dns_config_service_posix.cc
++++ b/net/dns/dns_config_service_posix.cc
+@@ -130,8 +130,8 @@ class DnsConfigServicePosix::Watcher : public DnsConfigService::Watcher {
+ 
+   bool Watch() override {
+     CheckOnCorrectSequence();
+-
+     bool success = true;
++#if !IS_MAS_BUILD()
+     if (!config_watcher_.Watch(base::BindRepeating(&Watcher::OnConfigChanged,
+                                                    base::Unretained(this)))) {
+       LOG(ERROR) << "DNS config watch failed to start.";
+@@ -148,6 +148,7 @@ class DnsConfigServicePosix::Watcher : public DnsConfigService::Watcher {
+       success = false;
+     }
+ #endif  // !BUILDFLAG(IS_IOS)
++#endif
+     return success;
+   }
+ 
+diff --git a/sandbox/mac/BUILD.gn b/sandbox/mac/BUILD.gn
+index 299a028f23314f479d2da8f914a5bdf34698d854..672dcb04dd3cf4e3cc71403f727a1dde91ad4402 100644
+--- a/sandbox/mac/BUILD.gn
++++ b/sandbox/mac/BUILD.gn
+@@ -39,6 +39,7 @@ component("seatbelt") {
+   ]
+   public_deps = [ "//third_party/protobuf:protobuf_lite" ]
+   defines = [ "SEATBELT_IMPLEMENTATION" ]
++  configs += ["//electron/build/config:mas_build"]
+ }
+ 
+ component("seatbelt_extension") {
+@@ -52,6 +53,7 @@ component("seatbelt_extension") {
+   libs = [ "sandbox" ]
+   public_deps = [ "//base" ]
+   defines = [ "SEATBELT_IMPLEMENTATION" ]
++  configs += ["//electron/build/config:mas_build"]
+ }
+ 
+ component("system_services") {
+@@ -66,6 +68,7 @@ component("system_services") {
+   deps = [ ":seatbelt_export" ]
+   public_deps = [ "//base" ]
+   defines = [ "SEATBELT_IMPLEMENTATION" ]
++  configs += ["//electron/build/config:mas_build"]
+ }
+ 
+ source_set("sandbox_unittests") {
+diff --git a/sandbox/mac/sandbox_compiler.cc b/sandbox/mac/sandbox_compiler.cc
+index f35d9ef2a2df3db8ecbf1d7b909c7b1cf33f3cd9..a710b8b4f851666fd65bb37f69ec2fa70259697b 100644
+--- a/sandbox/mac/sandbox_compiler.cc
++++ b/sandbox/mac/sandbox_compiler.cc
+@@ -47,6 +47,7 @@ bool SandboxCompiler::SetParameter(const std::string& key,
+ }
+ 
+ bool SandboxCompiler::CompileAndApplyProfile(std::string& error) {
++#if !IS_MAS_BUILD()
+   if (mode_ == Target::kSource) {
+     std::vector<const char*> params;
+ 
+@@ -67,6 +68,9 @@ bool SandboxCompiler::CompileAndApplyProfile(std::string& error) {
+     }
+   }
+   return false;
++#else
++  return true;
++#endif
+ }
+ 
+ bool SandboxCompiler::CompilePolicyToProto(mac::SandboxPolicy& policy,
+diff --git a/sandbox/mac/sandbox_logging.cc b/sandbox/mac/sandbox_logging.cc
+index 095c639b9893e885d8937e29ed7d47a7c28bc6b6..cfa5e307de8326fbc335996feaf9595d1572cd3d 100644
+--- a/sandbox/mac/sandbox_logging.cc
++++ b/sandbox/mac/sandbox_logging.cc
+@@ -33,9 +33,11 @@
+   }
+ #endif
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ void abort_report_np(const char*, ...);
+ }
++#endif
+ 
+ namespace sandbox::logging {
+ 
+@@ -76,9 +78,11 @@ void SendOsLog(Level level, const char* message) {
+     sandbox::crash_message::SetCrashMessage(message);
+   }
+ 
++#if !IS_MAS_BUILD()
+   if (level == Level::FATAL) {
+     abort_report_np(message);
+   }
++#endif
+ }
+ 
+ // |error| is strerror(errno) when a P* logging function is called. Pass
+diff --git a/sandbox/mac/seatbelt.cc b/sandbox/mac/seatbelt.cc
+index 15c835e118456394c0a00ac98c11241c14ca75bd..83759e5fbc252fa57ca2fa122873dfac3d61d46d 100644
+--- a/sandbox/mac/seatbelt.cc
++++ b/sandbox/mac/seatbelt.cc
+@@ -9,7 +9,7 @@
+ 
+ extern "C" {
+ #include <sandbox.h>
+-
++#if !IS_MAS_BUILD()
+ int sandbox_init_with_parameters(const char* profile,
+                                  uint64_t flags,
+                                  const char* const parameters[],
+@@ -40,13 +40,13 @@ sandbox_profile_t* sandbox_compile_string(const char* data,
+                                           char** error);
+ int sandbox_apply(sandbox_profile_t*);
+ void sandbox_free_profile(sandbox_profile_t*);
+-
++#endif
+ }  // extern "C"
+ 
+ namespace sandbox {
+ 
+ namespace {
+-
++#if !IS_MAS_BUILD()
+ bool HandleSandboxResult(int rv, char* errorbuf, std::string* error) {
+   if (rv == 0) {
+     if (error)
+@@ -74,36 +74,48 @@ bool HandleSandboxErrno(int rv, const char* message, std::string* error) {
+   }
+   return false;
+ }
+-
++#endif
+ }  // namespace
+ 
+ // static
+ Seatbelt::Parameters Seatbelt::Parameters::Create() {
+   Parameters params;
++#if !IS_MAS_BUILD()
+   params.params_ = ::sandbox_create_params();
++#endif
+   return params;
+ }
+ 
+ Seatbelt::Parameters::Parameters() = default;
+ 
+ Seatbelt::Parameters::Parameters(Seatbelt::Parameters&& other) {
++#if !IS_MAS_BUILD()
+   params_ = std::exchange(other.params_, nullptr);
++#endif
+ }
+ 
+ Seatbelt::Parameters& Seatbelt::Parameters::operator=(
+     Seatbelt::Parameters&& other) {
++#if !IS_MAS_BUILD()
+   params_ = std::exchange(other.params_, nullptr);
++#endif
+   return *this;
+ }
+ 
+ bool Seatbelt::Parameters::Set(const char* key, const char* value) {
++#if !IS_MAS_BUILD()
+   return ::sandbox_set_param(params_, key, value) == 0;
++#else
++  return true;
++#endif
+ }
+ 
+ Seatbelt::Parameters::~Parameters() {
++#if !IS_MAS_BUILD()
+   if (params_) {
+     ::sandbox_free_params(params_);
+   }
++#endif
+ }
+ 
+ // Initialize the static member variables.
+@@ -114,6 +126,7 @@ const char* Seatbelt::kProfilePureComputation = kSBXProfilePureComputation;
+ 
+ // static
+ bool Seatbelt::Init(const char* profile, uint64_t flags, std::string* error) {
++#if !IS_MAS_BUILD()
+ // OS X deprecated these functions, but did not provide a suitable replacement,
+ // so ignore the deprecation warning.
+ #pragma clang diagnostic push
+@@ -122,6 +135,9 @@ bool Seatbelt::Init(const char* profile, uint64_t flags, std::string* error) {
+   int rv = ::sandbox_init(profile, flags, &errorbuf);
+   return HandleSandboxResult(rv, errorbuf, error);
+ #pragma clang diagnostic pop
++#else
++  return true;
++#endif
+ }
+ 
+ // static
+@@ -129,10 +145,14 @@ bool Seatbelt::InitWithParams(const char* profile,
+                               uint64_t flags,
+                               const char* const parameters[],
+                               std::string* error) {
++#if !IS_MAS_BUILD()
+   char* errorbuf = nullptr;
+   int rv =
+       ::sandbox_init_with_parameters(profile, flags, parameters, &errorbuf);
+   return HandleSandboxResult(rv, errorbuf, error);
++#else
++  return true;
++#endif
+ }
+ 
+ // static
+@@ -140,6 +160,7 @@ bool Seatbelt::Compile(const char* profile,
+                        const Seatbelt::Parameters& params,
+                        std::string& compiled_profile,
+                        std::string* error) {
++#if !IS_MAS_BUILD()
+   char* errorbuf = nullptr;
+   sandbox_profile_t* sandbox_profile =
+       ::sandbox_compile_string(profile, params.params(), &errorbuf);
+@@ -149,33 +170,44 @@ bool Seatbelt::Compile(const char* profile,
+   compiled_profile.assign(reinterpret_cast<const char*>(sandbox_profile->data),
+                           sandbox_profile->size);
+   ::sandbox_free_profile(sandbox_profile);
++#endif
+   return true;
+ }
+ 
+ // static
+ bool Seatbelt::ApplyCompiledProfile(const std::string& profile,
+                                     std::string* error) {
++#if !IS_MAS_BUILD()
+   sandbox_profile_t sbox_profile = {
+       .builtin = nullptr,
+       .data = reinterpret_cast<const uint8_t*>(profile.data()),
+       .size = profile.size()};
+   return HandleSandboxErrno(::sandbox_apply(&sbox_profile),
+                             "sandbox_apply: ", error);
++#else
++  return true;
++#endif
+ }
+ 
+ // static
+ void Seatbelt::FreeError(char* errorbuf) {
++#if !IS_MAS_BUILD()
+ // OS X deprecated these functions, but did not provide a suitable replacement,
+ // so ignore the deprecation warning.
+ #pragma clang diagnostic push
+ #pragma clang diagnostic ignored "-Wdeprecated-declarations"
+   return ::sandbox_free_error(errorbuf);
+ #pragma clang diagnostic pop
++#endif
+ }
+ 
+ // static
+ bool Seatbelt::IsSandboxed() {
++#if !IS_MAS_BUILD()
+   return ::sandbox_check(getpid(), NULL, 0);
++#else
++  return true;
++#endif
+ }
+ 
+ }  // namespace sandbox
+diff --git a/sandbox/mac/seatbelt_extension.cc b/sandbox/mac/seatbelt_extension.cc
+index 18479382a277cb2b25626ec8d31442bfd1377ee6..7d80d7fa8337523c3a70f317f883f0cc26c6f40b 100644
+--- a/sandbox/mac/seatbelt_extension.cc
++++ b/sandbox/mac/seatbelt_extension.cc
+@@ -11,6 +11,7 @@
+ #include "base/notreached.h"
+ #include "sandbox/mac/seatbelt_extension_token.h"
+ 
++#if !IS_MAS_BUILD()
+ // libsandbox private API.
+ extern "C" {
+ extern const char* APP_SANDBOX_READ;
+@@ -22,6 +23,7 @@ char* sandbox_extension_issue_file(const char* type,
+                                    const char* path,
+                                    uint32_t flags);
+ }
++#endif
+ 
+ namespace sandbox {
+ 
+@@ -50,7 +52,11 @@ std::unique_ptr<SeatbeltExtension> SeatbeltExtension::FromToken(
+ 
+ bool SeatbeltExtension::Consume() {
+   DCHECK(!token_.empty());
++#if !IS_MAS_BUILD()
+   handle_ = sandbox_extension_consume(token_.c_str());
++#else
++  handle_ = -1;
++#endif
+   return handle_ > 0;
+ }
+ 
+@@ -62,7 +68,11 @@ bool SeatbeltExtension::ConsumePermanently() {
+ }
+ 
+ bool SeatbeltExtension::Revoke() {
++#if !IS_MAS_BUILD()
+   int rv = sandbox_extension_release(handle_);
++#else
++  int rv = -1;
++#endif
+   handle_ = 0;
+   token_.clear();
+   return rv == 0;
+@@ -80,12 +90,14 @@ SeatbeltExtension::SeatbeltExtension(const std::string& token)
+ char* SeatbeltExtension::IssueToken(SeatbeltExtension::Type type,
+                                     const std::string& resource) {
+   switch (type) {
++#if !IS_MAS_BUILD()
+     case FILE_READ:
+       return sandbox_extension_issue_file(APP_SANDBOX_READ, resource.c_str(),
+                                           0);
+     case FILE_READ_WRITE:
+       return sandbox_extension_issue_file(APP_SANDBOX_READ_WRITE,
+                                           resource.c_str(), 0);
++#endif
+     default:
+       NOTREACHED();
+       return nullptr;
+diff --git a/sandbox/mac/system_services.cc b/sandbox/mac/system_services.cc
+index eb81a70e4d5d5cd3e6ae9b45f8cd1c795ea76c51..dc30306f2c5d20503399fc3a8860773aa0044352 100644
+--- a/sandbox/mac/system_services.cc
++++ b/sandbox/mac/system_services.cc
+@@ -9,6 +9,7 @@
+ 
+ #include "base/apple/osstatus_logging.h"
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ OSStatus SetApplicationIsDaemon(Boolean isDaemon);
+ void _LSSetApplicationLaunchServicesServerConnectionStatus(
+@@ -19,10 +20,12 @@ void _LSSetApplicationLaunchServicesServerConnectionStatus(
+ // https://github.com/WebKit/WebKit/blob/24aaedc770d192d03a07ba4a71727274aaa8fc07/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm#L840
+ void _CSCheckFixDisable();
+ }  // extern "C"
++#endif
+ 
+ namespace sandbox {
+ 
+ void DisableLaunchServices() {
++  #if !IS_MAS_BUILD()
+   // Allow the process to continue without a LaunchServices ASN. The
+   // INIT_Process function in HIServices will abort if it cannot connect to
+   // launchservicesd to get an ASN. By setting this flag, HIServices skips
+@@ -36,10 +39,13 @@ void DisableLaunchServices() {
+       0, ^bool(CFDictionaryRef options) {
+         return false;
+       });
++  #endif
+ }
+ 
+ void DisableCoreServicesCheckFix() {
++#if !IS_MAS_BUILD()
+   _CSCheckFixDisable();
++#endif
+ }
+ 
+ }  // namespace sandbox
+diff --git a/third_party/blink/renderer/core/BUILD.gn b/third_party/blink/renderer/core/BUILD.gn
+index 3c095a52ebca04905445843a536eb92103a326f2..97b413d1283d79af6954de2f04919a11c8e46689 100644
+--- a/third_party/blink/renderer/core/BUILD.gn
++++ b/third_party/blink/renderer/core/BUILD.gn
+@@ -312,6 +312,7 @@ component("core") {
+   configs -= core_config_remove
+   configs += core_config_add
+   configs += [ "//v8:external_startup_data" ]
++  configs += ["//electron/build/config:mas_build"]
+ 
+   public_deps = [
+     ":core_generated",
+diff --git a/third_party/blink/renderer/core/editing/build.gni b/third_party/blink/renderer/core/editing/build.gni
+index 0e58db44e208e7aa1f4a1f9a27ed8bc7d9bd8205..a7cc2154ffeb5229e4ea59c6fc4964b6b1c23f85 100644
+--- a/third_party/blink/renderer/core/editing/build.gni
++++ b/third_party/blink/renderer/core/editing/build.gni
+@@ -354,10 +354,14 @@ blink_core_sources_editing = [
+ if (is_mac) {
+   blink_core_sources_editing += [
+     "commands/smart_replace_cf.cc",
+-    "kill_ring_mac.mm",
+     "substring_util.h",
+     "substring_util.mm",
+   ]
++  if (is_mas_build) {
++    blink_core_sources_editing += [ "kill_ring_mac.mm" ]
++  } else {
++    blink_core_sources_editing += [ "kill_ring_none.cc" ]
++  }
+ } else {
+   blink_core_sources_editing += [ "kill_ring_none.cc" ]
+ }
+diff --git a/ui/accelerated_widget_mac/BUILD.gn b/ui/accelerated_widget_mac/BUILD.gn
+index 3ead42e14ad9d41a30c5637678a3ac49296ce2a6..8dec61ee6a62e54ec3c8c5dd5e08601c28d04dfe 100644
+--- a/ui/accelerated_widget_mac/BUILD.gn
++++ b/ui/accelerated_widget_mac/BUILD.gn
+@@ -33,6 +33,8 @@ component("accelerated_widget_mac") {
+     "QuartzCore.framework",
+   ]
+ 
++  configs += ["//electron/build/config:mas_build"]
++
+   if (is_ios) {
+     sources += [ "ca_layer_frame_sink_provider.h" ]
+   }
+diff --git a/ui/accelerated_widget_mac/display_ca_layer_tree.mm b/ui/accelerated_widget_mac/display_ca_layer_tree.mm
+index dcf493d62990018040a3f84b6f875af737bd2214..6ffffe8b3946e0427aead8be19878c537c841294 100644
+--- a/ui/accelerated_widget_mac/display_ca_layer_tree.mm
++++ b/ui/accelerated_widget_mac/display_ca_layer_tree.mm
+@@ -121,6 +121,7 @@ - (void)setContentsChanged;
+ }
+ 
+ void DisplayCALayerTree::GotCALayerFrame(uint32_t ca_context_id) {
++#if !IS_MAS_BUILD()
+   // Early-out if the remote layer has not changed.
+   if (remote_layer_.contextId == ca_context_id) {
+     return;
+@@ -150,6 +151,9 @@ - (void)setContentsChanged;
+     [io_surface_layer_ removeFromSuperlayer];
+     io_surface_layer_ = nil;
+   }
++#else
++  NOTREACHED() << "Remote layer is being used in MAS build";
++#endif
+ }
+ 
+ void DisplayCALayerTree::GotIOSurfaceFrame(
+diff --git a/ui/accessibility/platform/BUILD.gn b/ui/accessibility/platform/BUILD.gn
+index 4e23c38763184840a393589b3f55dcabb0db8121..e4ad30d0d7acecdca3a22fe05935a3406d784a95 100644
+--- a/ui/accessibility/platform/BUILD.gn
++++ b/ui/accessibility/platform/BUILD.gn
+@@ -251,6 +251,7 @@ component("platform") {
+       weak_frameworks = [
+         "Accessibility.framework",  # macOS 11
+       ]
++      configs += ["//electron/build/config:mas_build"]
+     }
+ 
+     if (use_atk) {
+diff --git a/ui/accessibility/platform/inspect/ax_transform_mac.mm b/ui/accessibility/platform/inspect/ax_transform_mac.mm
+index c737a2ca1afb44083aef33c6aa4518bea68d1aba..879f1357b5129849c5a1aa1731cf769712569e9e 100644
+--- a/ui/accessibility/platform/inspect/ax_transform_mac.mm
++++ b/ui/accessibility/platform/inspect/ax_transform_mac.mm
+@@ -108,6 +108,7 @@
+     }
+   }
+ 
++#if !IS_MAS_BUILD()
+   // AXTextMarker
+   if (IsAXTextMarker(value)) {
+     return AXTextMarkerToBaseValue(value, indexer);
+@@ -117,6 +118,7 @@
+   if (IsAXTextMarkerRange(value)) {
+     return AXTextMarkerRangeToBaseValue(value, indexer);
+   }
++#endif
+ 
+   // Accessible object
+   if (AXElementWrapper::IsValidElement(value)) {
+diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
+index 3af6a66b319a17f7a5962a3135358dfa3ca5fa00..67d0b5c26ef4788559efc696656dc88fc5b7e637 100644
+--- a/ui/base/BUILD.gn
++++ b/ui/base/BUILD.gn
+@@ -359,6 +359,7 @@ component("base") {
+       "interaction/element_tracker_mac.mm",
+       "resource/resource_bundle_mac.mm",
+     ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_apple) {
+@@ -376,6 +377,13 @@ component("base") {
+     sources += [ "resource/resource_bundle_lacros.cc" ]
+   }
+ 
++  if (is_mas_build) {
++    sources -= [
++      "cocoa/remote_accessibility_api.h",
++      "cocoa/remote_accessibility_api.mm",
++    ]
++  }
++
+   if (is_ios) {
+     sources += [
+       "device_form_factor_ios.mm",
+diff --git a/ui/base/cocoa/remote_accessibility_api.h b/ui/base/cocoa/remote_accessibility_api.h
+index 3182458838aa96d34911280ab4c6c3aa4aa22d6d..17b57f54492421743a0d69106eefce2c9beb8e87 100644
+--- a/ui/base/cocoa/remote_accessibility_api.h
++++ b/ui/base/cocoa/remote_accessibility_api.h
+@@ -13,6 +13,8 @@
+ 
+ // NSAccessibilityRemoteUIElement is a private class in AppKit.
+ 
++#if !IS_MAS_BUILD()
++
+ @interface NSAccessibilityRemoteUIElement : NSObject
+ + (void)setRemoteUIApp:(BOOL)flag;
+ + (BOOL)isRemoteUIApp;
+@@ -38,4 +40,6 @@ class COMPONENT_EXPORT(UI_BASE) RemoteAccessibility {
+ 
+ }  // namespace ui
+ 
++#endif  // MAS_BUILD
++
+ #endif  // UI_BASE_COCOA_REMOTE_ACCESSIBILITY_API_H_
+diff --git a/ui/base/cocoa/remote_layer_api.h b/ui/base/cocoa/remote_layer_api.h
+index 59dc2f82214cfd883b6ebef3b0fb25af6387a9cd..d585ba14b34021a93c878d0d9f9d9ef70eed32ca 100644
+--- a/ui/base/cocoa/remote_layer_api.h
++++ b/ui/base/cocoa/remote_layer_api.h
+@@ -17,6 +17,7 @@
+ 
+ #if BUILDFLAG(IS_MAC)
+ 
++#if !IS_MAS_BUILD()
+ // The CGSConnectionID is used to create the CAContext in the process that is
+ // going to share the CALayers that it is rendering to another process to
+ // display.
+@@ -68,6 +69,8 @@ extern NSString* const kCAContextIgnoresHitTest;
+ 
+ #endif  // __OBJC__
+ 
++#endif // MAS_BUILD
++
+ namespace ui {
+ 
+ // This function will check if all of the interfaces listed above are supported
+diff --git a/ui/base/cocoa/remote_layer_api.mm b/ui/base/cocoa/remote_layer_api.mm
+index fc25ba79d2b0e1acdb7ba54b89e7d6e16f94771b..962df2d65d61ec0836cf465d847eb666033846f2 100644
+--- a/ui/base/cocoa/remote_layer_api.mm
++++ b/ui/base/cocoa/remote_layer_api.mm
+@@ -10,6 +10,7 @@
+ 
+ namespace ui {
+ 
++#if !IS_MAS_BUILD()
+ namespace {
+ // Control use of cross-process CALayers to display content directly from the
+ // GPU process on Mac.
+@@ -17,8 +18,10 @@
+              "RemoteCoreAnimationAPI",
+              base::FEATURE_ENABLED_BY_DEFAULT);
+ }  // namespace
++#endif
+ 
+ bool RemoteLayerAPISupported() {
++#if !IS_MAS_BUILD()
+   if (!base::FeatureList::IsEnabled(kRemoteCoreAnimationAPI))
+     return false;
+ 
+@@ -55,6 +58,9 @@ bool RemoteLayerAPISupported() {
+ 
+   // If everything is there, we should be able to use the API.
+   return true;
++#else
++  return false;
++#endif  // MAS_BUILD
+ }
+ 
+ }  // namespace
+diff --git a/ui/display/BUILD.gn b/ui/display/BUILD.gn
+index 301e8792b1259e7f7c4eb8e75a09a32f0d60e91f..36da16f203b14e872fb8153e8fc10c3f6725280d 100644
+--- a/ui/display/BUILD.gn
++++ b/ui/display/BUILD.gn
+@@ -68,6 +68,10 @@ component("display") {
+       "mac/display_link_mac.h",
+       "mac/screen_mac.mm",
+     ]
++
++    configs += [
++      "//electron/build/config:mas_build"
++    ]
+   }
+ 
+   if (is_win) {
+diff --git a/ui/display/mac/screen_mac.mm b/ui/display/mac/screen_mac.mm
+index a771c1c03fd1afe3a5e563b4421721a5ddc2eb93..a6cbdfcbeff30508d921d4637aac543dce9e8ad3 100644
+--- a/ui/display/mac/screen_mac.mm
++++ b/ui/display/mac/screen_mac.mm
+@@ -171,7 +171,17 @@ DisplayMac BuildDisplayForScreen(NSScreen* screen) {
+     display.set_color_depth(Display::kDefaultBitsPerPixel);
+     display.set_depth_per_component(Display::kDefaultBitsPerComponent);
+   }
++#if IS_MAS_BUILD()
++  // This is equivalent to the CGDisplayUsesForceToGray() API as at 2018-08-06,
++  // but avoids usage of the private API.
++  CFStringRef app = CFSTR("com.apple.CoreGraphics");
++  CFStringRef key = CFSTR("DisplayUseForcedGray");
++  Boolean key_valid = false;
++  display.set_is_monochrome(
++      CFPreferencesGetAppBooleanValue(key, app, &key_valid));
++#else
+   display.set_is_monochrome(CGDisplayUsesForceToGray());
++#endif
+ 
+   // Query the display's refresh rate.
+   {
+diff --git a/ui/gfx/BUILD.gn b/ui/gfx/BUILD.gn
+index df601fcc40b4b8ca131a4f5a3ced5897075aa0f7..9d2edc62d95f04b6f1b3cd667940b1cb2dc728c3 100644
+--- a/ui/gfx/BUILD.gn
++++ b/ui/gfx/BUILD.gn
+@@ -204,6 +204,7 @@ component("gfx") {
+       "scoped_ns_graphics_context_save_gstate_mac.h",
+       "scoped_ns_graphics_context_save_gstate_mac.mm",
+     ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+   if (is_win) {
+     sources += [
+diff --git a/ui/gfx/platform_font_mac.mm b/ui/gfx/platform_font_mac.mm
+index b28640bb4d89ba9508d4086c9e5ca9ed4a9a7023..15cb883b91f624c1f23f4458dbf8d14763d11778 100644
+--- a/ui/gfx/platform_font_mac.mm
++++ b/ui/gfx/platform_font_mac.mm
+@@ -28,9 +28,11 @@
+ 
+ using Weight = Font::Weight;
+ 
++#if !IS_MAS_BUILD()
+ extern "C" {
+ bool CTFontDescriptorIsSystemUIFont(CTFontDescriptorRef);
+ }
++#endif
+ 
+ namespace {
+ 
+@@ -245,7 +247,13 @@ CTFontRef SystemFontForConstructorOfType(PlatformFontMac::SystemFontType type) {
+   // TODO(avi, etienneb): Figure out this font stuff.
+   base::apple::ScopedCFTypeRef<CTFontDescriptorRef> descriptor(
+       CTFontCopyFontDescriptor(font));
++#if IS_MAS_BUILD()
++  CFNumberRef priority = (CFNumberRef)CTFontDescriptorCopyAttribute(descriptor.get(), (CFStringRef)kCTFontPriorityAttribute);
++  SInt64 v;
++  if (CFNumberGetValue(priority, kCFNumberSInt64Type, &v) && v == kCTFontPrioritySystem) {
++#else
+   if (CTFontDescriptorIsSystemUIFont(descriptor.get())) {
++#endif
+     // Assume it's the standard system font. The fact that this much is known is
+     // enough.
+     return PlatformFontMac::SystemFontType::kGeneral;
+diff --git a/ui/views/BUILD.gn b/ui/views/BUILD.gn
+index e1bc7d4e424a2bcfa51394edf8b22a8711d9ec95..d2e2370658a86c99581d9f4d009af552f71eac94 100644
+--- a/ui/views/BUILD.gn
++++ b/ui/views/BUILD.gn
+@@ -697,6 +697,7 @@ component("views") {
+       "IOSurface.framework",
+       "QuartzCore.framework",
+     ]
++    configs += ["//electron/build/config:mas_build"]
+   }
+ 
+   if (is_win) {
+@@ -1126,6 +1127,8 @@ source_set("test_support") {
+     "//testing/gtest",
+   ]
+ 
++  configs += ["//electron/build/config:mas_build"]
++
+   if (is_win) {
+     sources += [
+       "test/desktop_window_tree_host_win_test_api.cc",
+diff --git a/ui/views/cocoa/native_widget_mac_ns_window_host.h b/ui/views/cocoa/native_widget_mac_ns_window_host.h
+index f37c02488e6ba943ebf9b880a04bcfef9afc9d97..b10ed25b5cdf5eb2f314ed72226f71c8bc35e58e 100644
+--- a/ui/views/cocoa/native_widget_mac_ns_window_host.h
++++ b/ui/views/cocoa/native_widget_mac_ns_window_host.h
+@@ -30,7 +30,9 @@
+ #include "ui/views/window/dialog_observer.h"
+ 
+ @class NativeWidgetMacNSWindow;
++#if !IS_MAS_BUILD()
+ @class NSAccessibilityRemoteUIElement;
++#endif
+ @class NSView;
+ 
+ namespace remote_cocoa {
+@@ -465,10 +467,12 @@ class VIEWS_EXPORT NativeWidgetMacNSWindowHost
+   mojo::AssociatedRemote<remote_cocoa::mojom::NativeWidgetNSWindow>
+       remote_ns_window_remote_;
+ 
++#if !IS_MAS_BUILD()
+   // Remote accessibility objects corresponding to the NSWindow and its root
+   // NSView.
+   NSAccessibilityRemoteUIElement* __strong remote_window_accessible_;
+   NSAccessibilityRemoteUIElement* __strong remote_view_accessible_;
++#endif
+ 
+   // Used to force the NSApplication's focused accessibility element to be the
+   // views::Views accessibility tree when the NSView for this is focused.
+diff --git a/ui/views/cocoa/native_widget_mac_ns_window_host.mm b/ui/views/cocoa/native_widget_mac_ns_window_host.mm
+index b3fa0a3684892edc14053ba8e7a5f2d5fb15e6e3..c45fd31fb1ac4cd256addabdd0a11ff75eaa3a99 100644
+--- a/ui/views/cocoa/native_widget_mac_ns_window_host.mm
++++ b/ui/views/cocoa/native_widget_mac_ns_window_host.mm
+@@ -345,7 +345,11 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
+ NativeWidgetMacNSWindowHost::GetNativeViewAccessibleForNSView() const {
+   if (in_process_ns_window_bridge_)
+     return in_process_ns_window_bridge_->ns_view();
++#if !IS_MAS_BUILD()
+   return remote_view_accessible_;
++#else
++  return nullptr;
++#endif
+ }
+ 
+ gfx::NativeViewAccessible
+@@ -360,7 +364,11 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
+     return [in_process_ns_window_bridge_->ns_view() window];
+   }
+ 
++#if !IS_MAS_BUILD()
+   return remote_window_accessible_;
++#else
++  return nullptr;
++#endif
+ }
+ 
+ remote_cocoa::mojom::NativeWidgetNSWindow*
+@@ -1407,6 +1415,7 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
+ void NativeWidgetMacNSWindowHost::SetRemoteAccessibilityTokens(
+     const std::vector<uint8_t>& window_token,
+     const std::vector<uint8_t>& view_token) {
++#if !IS_MAS_BUILD()
+   remote_window_accessible_ =
+       ui::RemoteAccessibility::GetRemoteElementFromToken(window_token);
+   remote_view_accessible_ =
+@@ -1418,11 +1427,13 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
+       ![NSAccessibilityRemoteUIElement isRemoteUIApp]) {
+     [NSAccessibilityRemoteUIElement setRemoteUIApp:YES];
+   }
++#endif
+ }
+ 
+ bool NativeWidgetMacNSWindowHost::GetRootViewAccessibilityToken(
+     int64_t* pid,
+     std::vector<uint8_t>* token) {
++#if !IS_MAS_BUILD()
+   *pid = getpid();
+   id element_id = GetNativeViewAccessible();
+ 
+@@ -1435,6 +1446,7 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
+   }
+ 
+   *token = ui::RemoteAccessibility::GetTokenForLocalElement(element_id);
++#endif
+   return true;
+ }
+ 
+diff --git a/ui/views/controls/webview/BUILD.gn b/ui/views/controls/webview/BUILD.gn
+index e3dd4fab3a1cac0138f8dac60247e0ea3343e87e..f31130eaa3719eda0da5b3f0e8c294775faf6bd4 100644
+--- a/ui/views/controls/webview/BUILD.gn
++++ b/ui/views/controls/webview/BUILD.gn
+@@ -19,6 +19,9 @@ component("webview") {
+ 
+   if (is_mac) {
+     sources += [ "unhandled_keyboard_event_handler_mac.mm" ]
++    configs += [
++      "//electron/build/config:mas_build",
++    ]
+   }
+ 
+   if (is_win) {

+ 0 - 196
patches/chromium/mas_avoid_usage_of_private_macos_apis.patch

@@ -1,196 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Samuel Attard <[email protected]>
-Date: Mon, 4 Mar 2019 14:43:36 -0800
-Subject: mas: avoid usage of private macOS APIs
-
-Disable usage of the following private APIs in MAS builds:
-* abort_report_np
-* pthread_fchdir_np
-* pthread_chdir_np
-* SetApplicationIsDaemon
-* _LSSetApplicationLaunchServicesServerConnectionStatus
-* AreDeviceAndUserJoinedToDomain
-* _CFIsObjC
-* AudioDeviceDuck
-
-diff --git a/base/enterprise_util_mac.mm b/base/enterprise_util_mac.mm
-index 2bad2ed2f5205b3a2599aa3a620812aa32d52f87..ab3d4c953556d4f94075671436565a6c442f30d5 100644
---- a/base/enterprise_util_mac.mm
-+++ b/base/enterprise_util_mac.mm
-@@ -115,6 +115,14 @@ DeviceUserDomainJoinState AreDeviceAndUserJoinedToDomain() {
-     DeviceUserDomainJoinState state{.device_joined = false,
-                                     .user_joined = false};
- 
-+#if IS_MAS_BUILD()
-+    return state;
-+  }();
-+
-+  return state;
-+}
-+#else
-+
-     @autoreleasepool {
-       ODSession* session = [ODSession defaultSession];
-       if (session == nil) {
-@@ -218,5 +226,6 @@ DeviceUserDomainJoinState AreDeviceAndUserJoinedToDomain() {
- 
-   return state;
- }
-+#endif
- 
- }  // namespace base
-diff --git a/base/process/launch_mac.cc b/base/process/launch_mac.cc
-index b267bc2272fa82334a70d897a900f1ea37b1a598..967e22699bf565368704972c021f9b425a570f08 100644
---- a/base/process/launch_mac.cc
-+++ b/base/process/launch_mac.cc
-@@ -21,13 +21,18 @@
- #include "base/threading/scoped_blocking_call.h"
- #include "base/threading/thread_restrictions.h"
- #include "base/trace_event/base_tracing.h"
-+#if IS_MAS_BUILD()
-+#include <sys/syscall.h>
-+#endif
- 
- extern "C" {
- // Changes the current thread's directory to a path or directory file
- // descriptor.
-+#if !IS_MAS_BUILD()
- int pthread_chdir_np(const char* dir);
- 
- int pthread_fchdir_np(int fd);
-+#endif
- 
- int responsibility_spawnattrs_setdisclaim(posix_spawnattr_t attrs,
-                                           int disclaim);
-@@ -99,13 +104,27 @@ class PosixSpawnFileActions {
- 
- #if !BUILDFLAG(IS_MAC)
- int ChangeCurrentThreadDirectory(const char* path) {
-+#if IS_MAS_BUILD()
-+  #pragma clang diagnostic push
-+  #pragma clang diagnostic ignored "-Wdeprecated-declarations"
-+  return syscall(SYS___pthread_chdir, path);
-+  #pragma clang diagnostic pop
-+#else
-   return pthread_chdir_np(path);
-+#endif
- }
- 
- // The recommended way to unset a per-thread cwd is to set a new value to an
- // invalid file descriptor, per libpthread-218.1.3/private/private.h.
- int ResetCurrentThreadDirectory() {
-+#if IS_MAS_BUILD()
-+  #pragma clang diagnostic push
-+  #pragma clang diagnostic ignored "-Wdeprecated-declarations"
-+  return syscall(SYS___pthread_fchdir, -1);
-+  #pragma clang diagnostic pop
-+#else
-   return pthread_fchdir_np(-1);
-+#endif
- }
- #endif
- 
-@@ -226,7 +245,7 @@ Process LaunchProcess(const std::vector<std::string>& argv,
-     file_actions.Inherit(STDERR_FILENO);
-   }
- 
--#if BUILDFLAG(IS_MAC)
-+#if 0
-   if (options.disclaim_responsibility) {
-     DPSXCHECK(responsibility_spawnattrs_setdisclaim(attr.get(), 1));
-   }
-diff --git a/media/audio/mac/audio_low_latency_input_mac.cc b/media/audio/mac/audio_low_latency_input_mac.cc
-index 34935789d56a6f65926599f053a7bc1b2020ad12..67270c5c75492e9d4c91d33a1eca5caf1cc43ace 100644
---- a/media/audio/mac/audio_low_latency_input_mac.cc
-+++ b/media/audio/mac/audio_low_latency_input_mac.cc
-@@ -30,19 +30,23 @@
- 
- namespace {
- extern "C" {
-+#if !IS_MAS_BUILD()
- // See:
- // https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/PAL/pal/spi/cf/CoreAudioSPI.h?rev=228264
- OSStatus AudioDeviceDuck(AudioDeviceID inDevice,
-                          Float32 inDuckedLevel,
-                          const AudioTimeStamp* __nullable inStartTime,
-                          Float32 inRampDuration) __attribute__((weak_import));
-+#endif
- }
- 
- void UndoDucking(AudioDeviceID output_device_id) {
-+#if !IS_MAS_BUILD()
-   if (AudioDeviceDuck != nullptr) {
-     // Ramp the volume back up over half a second.
-     AudioDeviceDuck(output_device_id, 1.0, nullptr, 0.5);
-   }
-+#endif
- }
- 
- }  // namespace
-diff --git a/sandbox/mac/sandbox_logging.cc b/sandbox/mac/sandbox_logging.cc
-index 095c639b9893e885d8937e29ed7d47a7c28bc6b6..cfa5e307de8326fbc335996feaf9595d1572cd3d 100644
---- a/sandbox/mac/sandbox_logging.cc
-+++ b/sandbox/mac/sandbox_logging.cc
-@@ -33,9 +33,11 @@
-   }
- #endif
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- void abort_report_np(const char*, ...);
- }
-+#endif
- 
- namespace sandbox::logging {
- 
-@@ -76,9 +78,11 @@ void SendOsLog(Level level, const char* message) {
-     sandbox::crash_message::SetCrashMessage(message);
-   }
- 
-+#if !IS_MAS_BUILD()
-   if (level == Level::FATAL) {
-     abort_report_np(message);
-   }
-+#endif
- }
- 
- // |error| is strerror(errno) when a P* logging function is called. Pass
-diff --git a/sandbox/mac/system_services.cc b/sandbox/mac/system_services.cc
-index eb81a70e4d5d5cd3e6ae9b45f8cd1c795ea76c51..dc30306f2c5d20503399fc3a8860773aa0044352 100644
---- a/sandbox/mac/system_services.cc
-+++ b/sandbox/mac/system_services.cc
-@@ -9,6 +9,7 @@
- 
- #include "base/apple/osstatus_logging.h"
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- OSStatus SetApplicationIsDaemon(Boolean isDaemon);
- void _LSSetApplicationLaunchServicesServerConnectionStatus(
-@@ -19,10 +20,12 @@ void _LSSetApplicationLaunchServicesServerConnectionStatus(
- // https://github.com/WebKit/WebKit/blob/24aaedc770d192d03a07ba4a71727274aaa8fc07/Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm#L840
- void _CSCheckFixDisable();
- }  // extern "C"
-+#endif
- 
- namespace sandbox {
- 
- void DisableLaunchServices() {
-+  #if !IS_MAS_BUILD()
-   // Allow the process to continue without a LaunchServices ASN. The
-   // INIT_Process function in HIServices will abort if it cannot connect to
-   // launchservicesd to get an ASN. By setting this flag, HIServices skips
-@@ -36,10 +39,13 @@ void DisableLaunchServices() {
-       0, ^bool(CFDictionaryRef options) {
-         return false;
-       });
-+  #endif
- }
- 
- void DisableCoreServicesCheckFix() {
-+#if !IS_MAS_BUILD()
-   _CSCheckFixDisable();
-+#endif
- }
- 
- }  // namespace sandbox

+ 0 - 74
patches/chromium/mas_blink_no_private_api.patch

@@ -1,74 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <[email protected]>
-Date: Thu, 20 Sep 2018 17:48:49 -0700
-Subject: mas: avoid private APIs in blink
-
-Guard usages in chromium code of private Mac APIs by MAS_BUILD, so they can
-be excluded for people who want to submit their apps to the Mac App store.
-
-diff --git a/third_party/blink/renderer/core/editing/kill_ring_mac.mm b/third_party/blink/renderer/core/editing/kill_ring_mac.mm
-index 94afefcee81b87c05bf9b1199d90d3d4b5ea84a6..78e4e0fe20e0fdfeab18b28fe208d5aa38eb0bd1 100644
---- a/third_party/blink/renderer/core/editing/kill_ring_mac.mm
-+++ b/third_party/blink/renderer/core/editing/kill_ring_mac.mm
-@@ -27,6 +27,7 @@
- 
- namespace blink {
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- 
- // Kill ring calls. Would be better to use NSKillRing.h, but that's not
-@@ -39,38 +40,53 @@
- void _NSNewKillRingSequence();
- void _NSSetKillRingToYankedState();
- }
-+#endif
- 
- static void InitializeKillRingIfNeeded() {
-   static bool initialized_kill_ring = false;
-   if (!initialized_kill_ring) {
-     initialized_kill_ring = true;
-+#if !IS_MAS_BUILD()
-     _NSInitializeKillRing();
-+#endif
-   }
- }
- 
- void KillRing::Append(const String& string) {
-   InitializeKillRingIfNeeded();
-+#if !IS_MAS_BUILD()
-   _NSAppendToKillRing(string);
-+#endif
- }
- 
- void KillRing::Prepend(const String& string) {
-   InitializeKillRingIfNeeded();
-+#if !IS_MAS_BUILD()
-   _NSPrependToKillRing(string);
-+#endif
- }
- 
- String KillRing::Yank() {
-   InitializeKillRingIfNeeded();
-+#if !IS_MAS_BUILD()
-   return _NSYankFromKillRing();
-+#else
-+  return "";
-+#endif
- }
- 
- void KillRing::StartNewSequence() {
-   InitializeKillRingIfNeeded();
-+#if !IS_MAS_BUILD()
-   _NSNewKillRingSequence();
-+#endif
- }
- 
- void KillRing::SetToYankedState() {
-   InitializeKillRingIfNeeded();
-+#if !IS_MAS_BUILD()
-   _NSSetKillRingToYankedState();
-+#endif
- }
- 
- }  // namespace blink

+ 0 - 146
patches/chromium/mas_disable_custom_window_frame.patch

@@ -1,146 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <[email protected]>
-Date: Thu, 20 Sep 2018 17:48:49 -0700
-Subject: mas: disable private window-frame APIs
-
-Disable private window frame APIs (NSNextStepFrame and NSThemeFrame) for MAS
-build.
-
-diff --git a/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm b/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm
-index b8eb13a42aa41143412b9a01f2716a3608b968fb..8eaccd4ce7e484aef1b4517935bc4ba2fa4a1ea4 100644
---- a/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm
-+++ b/components/remote_cocoa/app_shim/browser_native_widget_window_mac.mm
-@@ -9,6 +9,7 @@
- #include "components/remote_cocoa/app_shim/native_widget_ns_window_bridge.h"
- #include "components/remote_cocoa/common/native_widget_ns_window_host.mojom.h"
- 
-+#if !IS_MAS_BUILD()
- @interface NSWindow (PrivateBrowserNativeWidgetAPI)
- + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle;
- @end
-@@ -65,10 +66,13 @@ - (BOOL)_shouldCenterTrafficLights {
- 
- @end
- 
-+#endif  // MAS_BUILD
-+
- @implementation BrowserNativeWidgetWindow
- 
- // NSWindow (PrivateAPI) overrides.
- 
-+#if !IS_MAS_BUILD()
- + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle {
-   // - NSThemeFrame and its subclasses will be nil if it's missing at runtime.
-   if ([BrowserWindowFrame class])
-@@ -115,6 +119,8 @@ - (BOOL)_usesCustomDrawing {
-   return NO;
- }
- 
-+#endif  // MAS_BUILD
-+
- // Handle "Move focus to the window toolbar" configured in System Preferences ->
- // Keyboard -> Shortcuts -> Keyboard. Usually Ctrl+F5. The argument (|unknown|)
- // tends to just be nil.
-diff --git a/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm b/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm
-index 3a815ebf505bd95fa7f6b61ba433d98fbfe20225..dbbebbdc1735bc14224dfcde0b7fe3a6fd9f9e40 100644
---- a/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm
-+++ b/components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.mm
-@@ -4,6 +4,8 @@
- 
- #import "components/remote_cocoa/app_shim/native_widget_mac_frameless_nswindow.h"
- 
-+#if !IS_MAS_BUILD()
-+
- @interface NSWindow (PrivateAPI)
- + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle;
- @end
-@@ -18,8 +20,12 @@ - (CGFloat)_titlebarHeight {
- }
- @end
- 
-+#endif  // MAS_BUILD
-+
- @implementation NativeWidgetMacFramelessNSWindow
- 
-+#if !IS_MAS_BUILD()
-+
- + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle {
-   if ([NativeWidgetMacFramelessNSWindowFrame class]) {
-     return [NativeWidgetMacFramelessNSWindowFrame class];
-@@ -27,4 +33,6 @@ + (Class)frameViewClassForStyleMask:(NSUInteger)windowStyle {
-   return [super frameViewClassForStyleMask:windowStyle];
- }
- 
-+#endif  // MAS_BUILD
-+
- @end
-diff --git a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h
-index 085d9821933390c781fe11d441910501bf22d601..6c79434e2a5b59267c9801ac23c318c9c320f019 100644
---- a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h
-+++ b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.h
-@@ -17,6 +17,7 @@ class NativeWidgetNSWindowBridge;
- 
- @protocol WindowTouchBarDelegate;
- 
-+#if !IS_MAS_BUILD()
- // Weak lets Chrome launch even if a future macOS doesn't have the below classes
- WEAK_IMPORT_ATTRIBUTE
- @interface NSNextStepFrame : NSView
-@@ -33,6 +34,7 @@ REMOTE_COCOA_APP_SHIM_EXPORT
- REMOTE_COCOA_APP_SHIM_EXPORT
- @interface NativeWidgetMacNSWindowTitledFrame : NSThemeFrame
- @end
-+#endif
- 
- // The NSWindow used by BridgedNativeWidget. Provides hooks into AppKit that
- // can only be accomplished by overriding methods.
-diff --git a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm
-index 6e837d66209e6322324227bc596e40e56fccc495..3c3c5db57cfaba8e59867e74b81b4fad1cf7a8ed 100644
---- a/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm
-+++ b/components/remote_cocoa/app_shim/native_widget_mac_nswindow.mm
-@@ -101,7 +101,9 @@ void OrderChildWindow(NSWindow* child_window,
- }  // namespace
- 
- @interface NSWindow (Private)
-+#if !IS_MAS_BUILD()
- + (Class)frameViewClassForStyleMask:(NSWindowStyleMask)windowStyle;
-+#endif
- - (BOOL)hasKeyAppearance;
- - (long long)_resizeDirectionForMouseLocation:(CGPoint)location;
- - (BOOL)_isConsideredOpenForPersistentState;
-@@ -139,6 +141,8 @@ - (void)cr_mouseDownOnFrameView:(NSEvent*)event {
- }
- @end
- 
-+#if !IS_MAS_BUILD()
-+
- @implementation NativeWidgetMacNSWindowTitledFrame
- - (void)mouseDown:(NSEvent*)event {
-   if (self.window.isMovable)
-@@ -165,6 +169,8 @@ - (BOOL)usesCustomDrawing {
- }
- @end
- 
-+#endif  // MAS_BUILD
-+
- @implementation NativeWidgetMacNSWindow {
-  @private
-   CommandDispatcher* __strong _commandDispatcher;
-@@ -353,6 +359,8 @@ - (NSAccessibilityRole)accessibilityRole {
- 
- // NSWindow overrides.
- 
-+#if !IS_MAS_BUILD()
-+
- + (Class)frameViewClassForStyleMask:(NSWindowStyleMask)windowStyle {
-   if (windowStyle & NSWindowStyleMaskTitled) {
-     if (Class customFrame = [NativeWidgetMacNSWindowTitledFrame class])
-@@ -364,6 +372,8 @@ + (Class)frameViewClassForStyleMask:(NSWindowStyleMask)windowStyle {
-   return [super frameViewClassForStyleMask:windowStyle];
- }
- 
-+#endif
-+
- - (BOOL)_isTitleHidden {
-   bool shouldShowWindowTitle = YES;
-   if (_bridge)

+ 0 - 324
patches/chromium/mas_disable_remote_accessibility.patch

@@ -1,324 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <[email protected]>
-Date: Thu, 20 Sep 2018 17:48:49 -0700
-Subject: mas: avoid usage of NSAccessibilityRemoteUIElement
-
-According to ccameron:
-
-NSAccessibilityRemoteUIElement is unnecessary for Electron's use-case. We use it
-for progressive web apps (where the AXTree is in the browser process, but macOS
-needs to think it's coming from the PWA process). I think it can just be chopped
-out -- if there are any side-effects, we should be able to work around them.
-
-diff --git a/components/remote_cocoa/app_shim/application_bridge.mm b/components/remote_cocoa/app_shim/application_bridge.mm
-index 5a096477c123a782341115f964c4975301ccaf9a..ecfbb3b405425af346a6ba6788fc1d8ff89760cd 100644
---- a/components/remote_cocoa/app_shim/application_bridge.mm
-+++ b/components/remote_cocoa/app_shim/application_bridge.mm
-@@ -51,6 +51,7 @@
- 
-   // NativeWidgetNSWindowHostHelper:
-   id GetNativeViewAccessible() override {
-+#if !IS_MAS_BUILD()
-     if (!remote_accessibility_element_) {
-       int64_t browser_pid = 0;
-       std::vector<uint8_t> element_token;
-@@ -61,6 +62,9 @@ id GetNativeViewAccessible() override {
-           ui::RemoteAccessibility::GetRemoteElementFromToken(element_token);
-     }
-     return remote_accessibility_element_;
-+#else
-+    return nil;
-+#endif
-   }
-   void DispatchKeyEvent(ui::KeyEvent* event) override {
-     bool event_handled = false;
-@@ -99,7 +103,9 @@ void GetWordAt(const gfx::Point& location_in_content,
-   mojo::AssociatedRemote<mojom::TextInputHost> text_input_host_remote_;
- 
-   std::unique_ptr<NativeWidgetNSWindowBridge> bridge_;
-+#if !IS_MAS_BUILD()
-   NSAccessibilityRemoteUIElement* __strong remote_accessibility_element_;
-+#endif
- };
- 
- }  // namespace
-diff --git a/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm b/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm
-index 053b8a2182778b469941116eab3acd5fd6fd8099..d085258d5970b37215fe0d5591e6c0306401a172 100644
---- a/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm
-+++ b/components/remote_cocoa/app_shim/native_widget_ns_window_bridge.mm
-@@ -600,10 +600,12 @@ NSUInteger CountBridgedWindows(NSArray* child_windows) {
-   // this should be treated as an error and caught early.
-   CHECK(bridged_view_);
- 
-+#if !IS_MAS_BUILD()
-   // Send the accessibility tokens for the NSView now that it exists.
-   host_->SetRemoteAccessibilityTokens(
-       ui::RemoteAccessibility::GetTokenForLocalElement(window_),
-       ui::RemoteAccessibility::GetTokenForLocalElement(bridged_view_));
-+#endif
- 
-   // Beware: This view was briefly removed (in favor of a bare CALayer) in
-   // https://crrev.com/c/1236675. The ordering of unassociated layers relative
-diff --git a/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm b/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm
-index 76be676717e62c429319338c6115be89f2dfa424..18a5fd3c87b08c95d668b70c9b8f7a76413a75bb 100644
---- a/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm
-+++ b/content/app_shim_remote_cocoa/ns_view_bridge_factory_impl.mm
-@@ -86,8 +86,10 @@ id GetFocusedBrowserAccessibilityElement() override {
-     return nil;
-   }
-   void SetAccessibilityWindow(NSWindow* window) override {
-+#if !IS_MAS_BUILD()
-     host_->SetRemoteAccessibilityWindowToken(
-         ui::RemoteAccessibility::GetTokenForLocalElement(window));
-+#endif
-   }
- 
-   void ForwardKeyboardEvent(const content::NativeWebKeyboardEvent& key_event,
-diff --git a/content/browser/accessibility/browser_accessibility_manager_mac.mm b/content/browser/accessibility/browser_accessibility_manager_mac.mm
-index 5a6706495ed2a8f1cd781da9bde8572318bf6897..afd4d1f728a7f056e49b2ecb006c5a05388d3409 100644
---- a/content/browser/accessibility/browser_accessibility_manager_mac.mm
-+++ b/content/browser/accessibility/browser_accessibility_manager_mac.mm
-@@ -21,7 +21,9 @@
- #include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
- #include "ui/accessibility/ax_role_properties.h"
- #include "ui/accessibility/platform/ax_private_webkit_constants_mac.h"
-+#if !IS_MAS_BUILD()
- #include "ui/base/cocoa/remote_accessibility_api.h"
-+#endif
- 
- namespace {
- 
-@@ -224,6 +226,7 @@ void PostAnnouncementNotification(NSString* announcement,
-         return;
-       }
- 
-+#if !IS_MAS_BUILD()
-       BrowserAccessibilityManager* root_manager = GetManagerForRootFrame();
-       if (root_manager) {
-         BrowserAccessibilityManagerMac* root_manager_mac =
-@@ -246,6 +249,7 @@ void PostAnnouncementNotification(NSString* announcement,
-           return;
-         }
-       }
-+#endif
- 
-       // Use native VoiceOver support for live regions.
-       BrowserAccessibilityCocoa* retained_node = native_node;
-@@ -632,6 +636,7 @@ void PostAnnouncementNotification(NSString* announcement,
-     return window == [NSApp accessibilityFocusedWindow];
-   }
- 
-+#if !IS_MAS_BUILD()
-   // TODO(accessibility): We need a solution to the problem described below.
-   // If the window is NSAccessibilityRemoteUIElement, there are some challenges:
-   // 1. NSApp is the browser which spawned the PWA, and what it considers the
-@@ -660,6 +665,7 @@ void PostAnnouncementNotification(NSString* announcement,
-   if ([window isKindOfClass:[NSAccessibilityRemoteUIElement class]]) {
-     return true;
-   }
-+#endif
- 
-   return false;
- }
-diff --git a/content/browser/renderer_host/render_widget_host_view_mac.h b/content/browser/renderer_host/render_widget_host_view_mac.h
-index 90d8ab3119b469e62ca771aaeb3d6b5c13d79775..825d46c85a44adb68adefe4adc0dd926e71c9129 100644
---- a/content/browser/renderer_host/render_widget_host_view_mac.h
-+++ b/content/browser/renderer_host/render_widget_host_view_mac.h
-@@ -50,7 +50,9 @@ class ScopedPasswordInputEnabler;
- 
- @protocol RenderWidgetHostViewMacDelegate;
- 
-+#if !IS_MAS_BUILD()
- @class NSAccessibilityRemoteUIElement;
-+#endif
- @class RenderWidgetHostViewCocoa;
- @class CursorAccessibilityScaleFactorObserver;
- 
-@@ -676,9 +678,11 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
-   // EnsureSurfaceSynchronizedForWebTest().
-   uint32_t latest_capture_sequence_number_ = 0u;
- 
-+#if !IS_MAS_BUILD()
-   // Remote accessibility objects corresponding to the NSWindow that this is
-   // displayed to the user in.
-   NSAccessibilityRemoteUIElement* __strong remote_window_accessible_;
-+#endif
- 
-   // Used to force the NSApplication's focused accessibility element to be the
-   // content::BrowserAccessibilityCocoa accessibility tree when the NSView for
-diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
-index c260544133059b2104c1185b4708494ff1bde286..0d752ae48eb5f822dd80c369b726a7d411d71c78 100644
---- a/content/browser/renderer_host/render_widget_host_view_mac.mm
-+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
-@@ -272,8 +272,10 @@
- void RenderWidgetHostViewMac::MigrateNSViewBridge(
-     remote_cocoa::mojom::Application* remote_cocoa_application,
-     uint64_t parent_ns_view_id) {
-+#if !IS_MAS_BUILD()
-   // Destroy the previous remote accessibility element.
-   remote_window_accessible_ = nil;
-+#endif
- 
-   // Reset `ns_view_` before resetting `remote_ns_view_` to avoid dangling
-   // pointers. `ns_view_` gets reinitialized later in this method.
-@@ -1639,8 +1641,10 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
- 
- gfx::NativeViewAccessible
- RenderWidgetHostViewMac::AccessibilityGetNativeViewAccessibleForWindow() {
-+#if !IS_MAS_BUILD()
-   if (remote_window_accessible_)
-     return remote_window_accessible_;
-+#endif
-   return [GetInProcessNSView() window];
- }
- 
-@@ -1685,9 +1689,11 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
- }
- 
- void RenderWidgetHostViewMac::SetAccessibilityWindow(NSWindow* window) {
-+#if !IS_MAS_BUILD()
-   // When running in-process, just use the NSView's NSWindow as its own
-   // accessibility element.
-   remote_window_accessible_ = nil;
-+#endif
- }
- 
- bool RenderWidgetHostViewMac::SyncIsWidgetForMainFrame(
-@@ -2194,12 +2200,14 @@ void CombineTextNodesAndMakeCallback(SpeechCallback callback,
- 
- void RenderWidgetHostViewMac::SetRemoteAccessibilityWindowToken(
-     const std::vector<uint8_t>& window_token) {
-+#if !IS_MAS_BUILD()
-   if (window_token.empty()) {
-     remote_window_accessible_ = nil;
-   } else {
-     remote_window_accessible_ =
-         ui::RemoteAccessibility::GetRemoteElementFromToken(window_token);
-   }
-+#endif
- }
- 
- ///////////////////////////////////////////////////////////////////////////////
-diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
-index 3af6a66b319a17f7a5962a3135358dfa3ca5fa00..39a960146504ac6034fe24593006d09ff9c667ac 100644
---- a/ui/base/BUILD.gn
-+++ b/ui/base/BUILD.gn
-@@ -376,6 +376,13 @@ component("base") {
-     sources += [ "resource/resource_bundle_lacros.cc" ]
-   }
- 
-+  if (is_mas_build) {
-+    sources -= [
-+      "cocoa/remote_accessibility_api.h",
-+      "cocoa/remote_accessibility_api.mm",
-+    ]
-+  }
-+
-   if (is_ios) {
-     sources += [
-       "device_form_factor_ios.mm",
-diff --git a/ui/base/cocoa/remote_accessibility_api.h b/ui/base/cocoa/remote_accessibility_api.h
-index 3182458838aa96d34911280ab4c6c3aa4aa22d6d..17b57f54492421743a0d69106eefce2c9beb8e87 100644
---- a/ui/base/cocoa/remote_accessibility_api.h
-+++ b/ui/base/cocoa/remote_accessibility_api.h
-@@ -13,6 +13,8 @@
- 
- // NSAccessibilityRemoteUIElement is a private class in AppKit.
- 
-+#if !IS_MAS_BUILD()
-+
- @interface NSAccessibilityRemoteUIElement : NSObject
- + (void)setRemoteUIApp:(BOOL)flag;
- + (BOOL)isRemoteUIApp;
-@@ -38,4 +40,6 @@ class COMPONENT_EXPORT(UI_BASE) RemoteAccessibility {
- 
- }  // namespace ui
- 
-+#endif  // MAS_BUILD
-+
- #endif  // UI_BASE_COCOA_REMOTE_ACCESSIBILITY_API_H_
-diff --git a/ui/views/cocoa/native_widget_mac_ns_window_host.h b/ui/views/cocoa/native_widget_mac_ns_window_host.h
-index f37c02488e6ba943ebf9b880a04bcfef9afc9d97..b10ed25b5cdf5eb2f314ed72226f71c8bc35e58e 100644
---- a/ui/views/cocoa/native_widget_mac_ns_window_host.h
-+++ b/ui/views/cocoa/native_widget_mac_ns_window_host.h
-@@ -30,7 +30,9 @@
- #include "ui/views/window/dialog_observer.h"
- 
- @class NativeWidgetMacNSWindow;
-+#if !IS_MAS_BUILD()
- @class NSAccessibilityRemoteUIElement;
-+#endif
- @class NSView;
- 
- namespace remote_cocoa {
-@@ -465,10 +467,12 @@ class VIEWS_EXPORT NativeWidgetMacNSWindowHost
-   mojo::AssociatedRemote<remote_cocoa::mojom::NativeWidgetNSWindow>
-       remote_ns_window_remote_;
- 
-+#if !IS_MAS_BUILD()
-   // Remote accessibility objects corresponding to the NSWindow and its root
-   // NSView.
-   NSAccessibilityRemoteUIElement* __strong remote_window_accessible_;
-   NSAccessibilityRemoteUIElement* __strong remote_view_accessible_;
-+#endif
- 
-   // Used to force the NSApplication's focused accessibility element to be the
-   // views::Views accessibility tree when the NSView for this is focused.
-diff --git a/ui/views/cocoa/native_widget_mac_ns_window_host.mm b/ui/views/cocoa/native_widget_mac_ns_window_host.mm
-index b3fa0a3684892edc14053ba8e7a5f2d5fb15e6e3..c45fd31fb1ac4cd256addabdd0a11ff75eaa3a99 100644
---- a/ui/views/cocoa/native_widget_mac_ns_window_host.mm
-+++ b/ui/views/cocoa/native_widget_mac_ns_window_host.mm
-@@ -345,7 +345,11 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
- NativeWidgetMacNSWindowHost::GetNativeViewAccessibleForNSView() const {
-   if (in_process_ns_window_bridge_)
-     return in_process_ns_window_bridge_->ns_view();
-+#if !IS_MAS_BUILD()
-   return remote_view_accessible_;
-+#else
-+  return nullptr;
-+#endif
- }
- 
- gfx::NativeViewAccessible
-@@ -360,7 +364,11 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
-     return [in_process_ns_window_bridge_->ns_view() window];
-   }
- 
-+#if !IS_MAS_BUILD()
-   return remote_window_accessible_;
-+#else
-+  return nullptr;
-+#endif
- }
- 
- remote_cocoa::mojom::NativeWidgetNSWindow*
-@@ -1407,6 +1415,7 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
- void NativeWidgetMacNSWindowHost::SetRemoteAccessibilityTokens(
-     const std::vector<uint8_t>& window_token,
-     const std::vector<uint8_t>& view_token) {
-+#if !IS_MAS_BUILD()
-   remote_window_accessible_ =
-       ui::RemoteAccessibility::GetRemoteElementFromToken(window_token);
-   remote_view_accessible_ =
-@@ -1418,11 +1427,13 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
-       ![NSAccessibilityRemoteUIElement isRemoteUIApp]) {
-     [NSAccessibilityRemoteUIElement setRemoteUIApp:YES];
-   }
-+#endif
- }
- 
- bool NativeWidgetMacNSWindowHost::GetRootViewAccessibilityToken(
-     int64_t* pid,
-     std::vector<uint8_t>* token) {
-+#if !IS_MAS_BUILD()
-   *pid = getpid();
-   id element_id = GetNativeViewAccessible();
- 
-@@ -1435,6 +1446,7 @@ void HandleAccelerator(const ui::Accelerator& accelerator,
-   }
- 
-   *token = ui::RemoteAccessibility::GetTokenForLocalElement(element_id);
-+#endif
-   return true;
- }
- 

+ 0 - 165
patches/chromium/mas_disable_remote_layer.patch

@@ -1,165 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <[email protected]>
-Date: Thu, 20 Sep 2018 17:48:49 -0700
-Subject: mas: disable remote layer APIs (CAContext and CALayerHost) for MAS
- build
-
-Accordin to ccameron:
-
-For apps that spend a lot of time watching video (especially fullscreen video),
-the power/battery usage will likely increase 1.5x to 2x. For something that is,
-e.g, scrolling, it'll be smaller, more like 1.15x or 1.25x.
-
-In terms of performance, the impact will likely be fairly small -- any app that
-could hit 60fps before will likely still be able to hit 60fps. There may even be
-cases where performance improves when disabling remote CoreAnimation (remote
-CoreAnimation is really only about battery usage).
-
-diff --git a/gpu/ipc/service/image_transport_surface_overlay_mac.h b/gpu/ipc/service/image_transport_surface_overlay_mac.h
-index d1deb3d7d7d587b36bc8c19cf3f331a0ec6764dd..263c5f3446dab67b9f8d3be4d08eadbaa749dc1d 100644
---- a/gpu/ipc/service/image_transport_surface_overlay_mac.h
-+++ b/gpu/ipc/service/image_transport_surface_overlay_mac.h
-@@ -23,7 +23,9 @@
- #include "ui/display/types/display_constants.h"
- #endif
- 
-+#if !IS_MAS_BUILD()
- @class CAContext;
-+#endif
- @class CALayer;
- 
- namespace ui {
-@@ -76,8 +78,10 @@ class ImageTransportSurfaceOverlayMacEGL : public gl::Presenter {
-                        const gfx::PresentationFeedback& feedback);
-   void PopulateCALayerParameters();
- 
-+#if !IS_MAS_BUILD()
-   const bool use_remote_layer_api_;
-   CAContext* __strong ca_context_;
-+#endif
-   std::unique_ptr<ui::CALayerTreeCoordinator> ca_layer_tree_coordinator_;
- 
-   gfx::Size pixel_size_;
-diff --git a/gpu/ipc/service/image_transport_surface_overlay_mac.mm b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
-index caa7b447f79d837f100b3ee8bb4063145811b9bc..5c510fafb2891759cc12711286e3c34f994411bd 100644
---- a/gpu/ipc/service/image_transport_surface_overlay_mac.mm
-+++ b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
-@@ -52,12 +52,16 @@
- }  // namespace
- 
- ImageTransportSurfaceOverlayMacEGL::ImageTransportSurfaceOverlayMacEGL()
--    : use_remote_layer_api_(ui::RemoteLayerAPISupported()),
-+    :
-+#if !IS_MAS_BUILD()
-+    use_remote_layer_api_(ui::RemoteLayerAPISupported()),
-+#endif
-       scale_factor_(1),
-       weak_ptr_factory_(this) {
-   static bool av_disabled_at_command_line =
-       !base::FeatureList::IsEnabled(kAVFoundationOverlays);
- 
-+#if !IS_MAS_BUILD()
-   ca_layer_tree_coordinator_ = std::make_unique<ui::CALayerTreeCoordinator>(
-       use_remote_layer_api_, !av_disabled_at_command_line);
- 
-@@ -78,6 +82,10 @@
- #endif
-     ca_context_.layer = ca_layer_tree_coordinator_->GetCALayerForDisplay();
-   }
-+#else
-+  ca_layer_tree_coordinator_ = std::make_unique<ui::CALayerTreeCoordinator>(
-+      /*allow_remote_layers=*/false, !av_disabled_at_command_line);
-+#endif
- }
- 
- ImageTransportSurfaceOverlayMacEGL::~ImageTransportSurfaceOverlayMacEGL() {
-@@ -195,9 +203,13 @@
-     TRACE_EVENT_INSTANT2("test_gpu", "SwapBuffers", TRACE_EVENT_SCOPE_THREAD,
-                          "GLImpl", static_cast<int>(gl::GetGLImplementation()),
-                          "width", pixel_size_.width());
-+#if !IS_MAS_BUILD()
-     if (use_remote_layer_api_) {
-       params.ca_context_id = [ca_context_ contextId];
-     } else {
-+#else
-+    if (true) {
-+#endif
-       IOSurfaceRef io_surface =
-           ca_layer_tree_coordinator_->GetIOSurfaceForDisplay();
-       if (io_surface) {
-diff --git a/ui/accelerated_widget_mac/display_ca_layer_tree.mm b/ui/accelerated_widget_mac/display_ca_layer_tree.mm
-index dcf493d62990018040a3f84b6f875af737bd2214..6ffffe8b3946e0427aead8be19878c537c841294 100644
---- a/ui/accelerated_widget_mac/display_ca_layer_tree.mm
-+++ b/ui/accelerated_widget_mac/display_ca_layer_tree.mm
-@@ -121,6 +121,7 @@ - (void)setContentsChanged;
- }
- 
- void DisplayCALayerTree::GotCALayerFrame(uint32_t ca_context_id) {
-+#if !IS_MAS_BUILD()
-   // Early-out if the remote layer has not changed.
-   if (remote_layer_.contextId == ca_context_id) {
-     return;
-@@ -150,6 +151,9 @@ - (void)setContentsChanged;
-     [io_surface_layer_ removeFromSuperlayer];
-     io_surface_layer_ = nil;
-   }
-+#else
-+  NOTREACHED() << "Remote layer is being used in MAS build";
-+#endif
- }
- 
- void DisplayCALayerTree::GotIOSurfaceFrame(
-diff --git a/ui/base/cocoa/remote_layer_api.h b/ui/base/cocoa/remote_layer_api.h
-index 59dc2f82214cfd883b6ebef3b0fb25af6387a9cd..d585ba14b34021a93c878d0d9f9d9ef70eed32ca 100644
---- a/ui/base/cocoa/remote_layer_api.h
-+++ b/ui/base/cocoa/remote_layer_api.h
-@@ -17,6 +17,7 @@
- 
- #if BUILDFLAG(IS_MAC)
- 
-+#if !IS_MAS_BUILD()
- // The CGSConnectionID is used to create the CAContext in the process that is
- // going to share the CALayers that it is rendering to another process to
- // display.
-@@ -68,6 +69,8 @@ extern NSString* const kCAContextIgnoresHitTest;
- 
- #endif  // __OBJC__
- 
-+#endif // MAS_BUILD
-+
- namespace ui {
- 
- // This function will check if all of the interfaces listed above are supported
-diff --git a/ui/base/cocoa/remote_layer_api.mm b/ui/base/cocoa/remote_layer_api.mm
-index fc25ba79d2b0e1acdb7ba54b89e7d6e16f94771b..962df2d65d61ec0836cf465d847eb666033846f2 100644
---- a/ui/base/cocoa/remote_layer_api.mm
-+++ b/ui/base/cocoa/remote_layer_api.mm
-@@ -10,6 +10,7 @@
- 
- namespace ui {
- 
-+#if !IS_MAS_BUILD()
- namespace {
- // Control use of cross-process CALayers to display content directly from the
- // GPU process on Mac.
-@@ -17,8 +18,10 @@
-              "RemoteCoreAnimationAPI",
-              base::FEATURE_ENABLED_BY_DEFAULT);
- }  // namespace
-+#endif
- 
- bool RemoteLayerAPISupported() {
-+#if !IS_MAS_BUILD()
-   if (!base::FeatureList::IsEnabled(kRemoteCoreAnimationAPI))
-     return false;
- 
-@@ -55,6 +58,9 @@ bool RemoteLayerAPISupported() {
- 
-   // If everything is there, we should be able to use the API.
-   return true;
-+#else
-+  return false;
-+#endif  // MAS_BUILD
- }
- 
- }  // namespace

+ 0 - 447
patches/chromium/mas_no_private_api.patch

@@ -1,447 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <[email protected]>
-Date: Tue, 9 Oct 2018 10:36:20 -0700
-Subject: mas: avoid some private APIs
-
-Guard usages in blink of private Mac APIs by MAS_BUILD, so they can be
-excluded for people who want to submit their apps to the Mac App store.
-
-diff --git a/base/process/process_info_mac.cc b/base/process/process_info_mac.cc
-index 94a028be3c315edc0056408ab9ab41b6b001a1c1..0d830234edb5621f57e39f4a951d357a23f677c1 100644
---- a/base/process/process_info_mac.cc
-+++ b/base/process/process_info_mac.cc
-@@ -8,15 +8,21 @@
- #include <stdlib.h>
- #include <unistd.h>
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- pid_t responsibility_get_pid_responsible_for_pid(pid_t);
- }
-+#endif
- 
- namespace base {
- 
- bool IsProcessSelfResponsible() {
-+#if !IS_MAS_BUILD()
-   const pid_t pid = getpid();
-   return responsibility_get_pid_responsible_for_pid(pid) == pid;
-+#else
-+  return true;
-+#endif
- }
- 
- }  // namespace base
-diff --git a/content/renderer/renderer_main_platform_delegate_mac.mm b/content/renderer/renderer_main_platform_delegate_mac.mm
-index d4db3b179725cb96bcbd0f73db7d52ef8b7522db..6afbf1defb0591d9fe59a81e6c74746d3e15f081 100644
---- a/content/renderer/renderer_main_platform_delegate_mac.mm
-+++ b/content/renderer/renderer_main_platform_delegate_mac.mm
-@@ -10,9 +10,11 @@
- #include "sandbox/mac/seatbelt.h"
- #include "sandbox/mac/system_services.h"
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- CGError CGSSetDenyWindowServerConnections(bool);
- }
-+#endif
- 
- namespace content {
- 
-@@ -22,6 +24,7 @@
- // verifies there are no existing open connections), and then indicates that
- // Chrome should continue execution without access to launchservicesd.
- void DisableSystemServices() {
-+#if !IS_MAS_BUILD()
-   // Tell the WindowServer that we don't want to make any future connections.
-   // This will return Success as long as there are no open connections, which
-   // is what we want.
-@@ -30,6 +33,7 @@ void DisableSystemServices() {
- 
-   sandbox::DisableLaunchServices();
-   sandbox::DisableCoreServicesCheckFix();
-+#endif
- }
- 
- }  // namespace
-diff --git a/content/renderer/theme_helper_mac.mm b/content/renderer/theme_helper_mac.mm
-index a119b4439bfb9218c7aaf09dca8e78527da7f20d..faa813b003940280c6eeb87e70173019bdd5280c 100644
---- a/content/renderer/theme_helper_mac.mm
-+++ b/content/renderer/theme_helper_mac.mm
-@@ -8,10 +8,11 @@
- 
- #include "base/strings/sys_string_conversions.h"
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- bool CGFontRenderingGetFontSmoothingDisabled(void);
- }
--
-+#endif
- namespace content {
- 
- void SystemColorsDidChange(int aqua_color_variant) {
-@@ -24,8 +25,18 @@ void SystemColorsDidChange(int aqua_color_variant) {
- }
- 
- bool IsSubpixelAntialiasingAvailable() {
-+#if !IS_MAS_BUILD()
-   // See https://trac.webkit.org/changeset/239306/webkit for more info.
-   return !CGFontRenderingGetFontSmoothingDisabled();
-+#else
-+  NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
-+  NSString *default_key = @"CGFontRenderingGetFontSmoothingDisabled";
-+  // Check that key exists since boolForKey defaults to NO when the
-+  // key is missing and this key in fact defaults to YES;
-+  if ([defaults objectForKey:default_key] == nil)
-+    return false;
-+  return ![defaults boolForKey:default_key];
-+#endif
- }
- 
- }  // namespace content
-diff --git a/device/bluetooth/bluetooth_adapter_mac.mm b/device/bluetooth/bluetooth_adapter_mac.mm
-index 37ce08d9c11de4e53dbf9a9db2e74f1b12adafcf..bb9433fcb49d40adbe9ef8fdddfde49fc2809a78 100644
---- a/device/bluetooth/bluetooth_adapter_mac.mm
-+++ b/device/bluetooth/bluetooth_adapter_mac.mm
-@@ -37,6 +37,7 @@
- #include "device/bluetooth/bluetooth_socket_mac.h"
- #include "device/bluetooth/public/cpp/bluetooth_address.h"
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- // Undocumented IOBluetooth Preference API [1]. Used by `blueutil` [2] and
- // `Karabiner` [3] to programmatically control the Bluetooth state. Calling the
-@@ -50,6 +51,7 @@
- // [4] https://support.apple.com/kb/PH25091
- void IOBluetoothPreferenceSetControllerPowerState(int state);
- }
-+#endif
- 
- namespace {
- 
-@@ -93,8 +95,10 @@ bool IsDeviceSystemPaired(const std::string& device_address) {
-     : controller_state_function_(
-           base::BindRepeating(&BluetoothAdapterMac::GetHostControllerState,
-                               base::Unretained(this))),
-+#if !IS_MAS_BUILD()
-       power_state_function_(
-           base::BindRepeating(IOBluetoothPreferenceSetControllerPowerState)),
-+#endif
-       classic_discovery_manager_(
-           BluetoothDiscoveryManagerMac::CreateClassic(this)),
-       device_paired_status_callback_(
-@@ -244,8 +248,12 @@ bool IsDeviceSystemPaired(const std::string& device_address) {
- }
- 
- bool BluetoothAdapterMac::SetPoweredImpl(bool powered) {
-+#if !IS_MAS_BUILD()
-   power_state_function_.Run(base::strict_cast<int>(powered));
-   return true;
-+#else
-+  return false;
-+#endif
- }
- 
- base::WeakPtr<BluetoothLowEnergyAdapterApple>
-diff --git a/media/audio/mac/audio_manager_mac.cc b/media/audio/mac/audio_manager_mac.cc
-index b3e06372457f57a8c835a790691d8f492baecdec..b27691313cb15d663c903d05cdef20e44270c690 100644
---- a/media/audio/mac/audio_manager_mac.cc
-+++ b/media/audio/mac/audio_manager_mac.cc
-@@ -991,7 +991,7 @@ AudioParameters AudioManagerMac::GetPreferredOutputStreamParameters(
- 
- void AudioManagerMac::InitializeOnAudioThread() {
-   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
--  InitializeCoreAudioDispatchOverride();
-+  // InitializeCoreAudioDispatchOverride();
-   power_observer_ = std::make_unique<AudioPowerObserver>();
- }
- 
-diff --git a/net/dns/dns_config_service_posix.cc b/net/dns/dns_config_service_posix.cc
-index a93e7cd74d2a9d692304ecf10279fae8e96bb695..3506d6ca555701bad6623cc1c614e0081892e42b 100644
---- a/net/dns/dns_config_service_posix.cc
-+++ b/net/dns/dns_config_service_posix.cc
-@@ -130,8 +130,8 @@ class DnsConfigServicePosix::Watcher : public DnsConfigService::Watcher {
- 
-   bool Watch() override {
-     CheckOnCorrectSequence();
--
-     bool success = true;
-+#if !IS_MAS_BUILD()
-     if (!config_watcher_.Watch(base::BindRepeating(&Watcher::OnConfigChanged,
-                                                    base::Unretained(this)))) {
-       LOG(ERROR) << "DNS config watch failed to start.";
-@@ -148,6 +148,7 @@ class DnsConfigServicePosix::Watcher : public DnsConfigService::Watcher {
-       success = false;
-     }
- #endif  // !BUILDFLAG(IS_IOS)
-+#endif
-     return success;
-   }
- 
-diff --git a/sandbox/mac/sandbox_compiler.cc b/sandbox/mac/sandbox_compiler.cc
-index f35d9ef2a2df3db8ecbf1d7b909c7b1cf33f3cd9..a710b8b4f851666fd65bb37f69ec2fa70259697b 100644
---- a/sandbox/mac/sandbox_compiler.cc
-+++ b/sandbox/mac/sandbox_compiler.cc
-@@ -47,6 +47,7 @@ bool SandboxCompiler::SetParameter(const std::string& key,
- }
- 
- bool SandboxCompiler::CompileAndApplyProfile(std::string& error) {
-+#if !IS_MAS_BUILD()
-   if (mode_ == Target::kSource) {
-     std::vector<const char*> params;
- 
-@@ -67,6 +68,9 @@ bool SandboxCompiler::CompileAndApplyProfile(std::string& error) {
-     }
-   }
-   return false;
-+#else
-+  return true;
-+#endif
- }
- 
- bool SandboxCompiler::CompilePolicyToProto(mac::SandboxPolicy& policy,
-diff --git a/sandbox/mac/seatbelt.cc b/sandbox/mac/seatbelt.cc
-index 15c835e118456394c0a00ac98c11241c14ca75bd..83759e5fbc252fa57ca2fa122873dfac3d61d46d 100644
---- a/sandbox/mac/seatbelt.cc
-+++ b/sandbox/mac/seatbelt.cc
-@@ -9,7 +9,7 @@
- 
- extern "C" {
- #include <sandbox.h>
--
-+#if !IS_MAS_BUILD()
- int sandbox_init_with_parameters(const char* profile,
-                                  uint64_t flags,
-                                  const char* const parameters[],
-@@ -40,13 +40,13 @@ sandbox_profile_t* sandbox_compile_string(const char* data,
-                                           char** error);
- int sandbox_apply(sandbox_profile_t*);
- void sandbox_free_profile(sandbox_profile_t*);
--
-+#endif
- }  // extern "C"
- 
- namespace sandbox {
- 
- namespace {
--
-+#if !IS_MAS_BUILD()
- bool HandleSandboxResult(int rv, char* errorbuf, std::string* error) {
-   if (rv == 0) {
-     if (error)
-@@ -74,36 +74,48 @@ bool HandleSandboxErrno(int rv, const char* message, std::string* error) {
-   }
-   return false;
- }
--
-+#endif
- }  // namespace
- 
- // static
- Seatbelt::Parameters Seatbelt::Parameters::Create() {
-   Parameters params;
-+#if !IS_MAS_BUILD()
-   params.params_ = ::sandbox_create_params();
-+#endif
-   return params;
- }
- 
- Seatbelt::Parameters::Parameters() = default;
- 
- Seatbelt::Parameters::Parameters(Seatbelt::Parameters&& other) {
-+#if !IS_MAS_BUILD()
-   params_ = std::exchange(other.params_, nullptr);
-+#endif
- }
- 
- Seatbelt::Parameters& Seatbelt::Parameters::operator=(
-     Seatbelt::Parameters&& other) {
-+#if !IS_MAS_BUILD()
-   params_ = std::exchange(other.params_, nullptr);
-+#endif
-   return *this;
- }
- 
- bool Seatbelt::Parameters::Set(const char* key, const char* value) {
-+#if !IS_MAS_BUILD()
-   return ::sandbox_set_param(params_, key, value) == 0;
-+#else
-+  return true;
-+#endif
- }
- 
- Seatbelt::Parameters::~Parameters() {
-+#if !IS_MAS_BUILD()
-   if (params_) {
-     ::sandbox_free_params(params_);
-   }
-+#endif
- }
- 
- // Initialize the static member variables.
-@@ -114,6 +126,7 @@ const char* Seatbelt::kProfilePureComputation = kSBXProfilePureComputation;
- 
- // static
- bool Seatbelt::Init(const char* profile, uint64_t flags, std::string* error) {
-+#if !IS_MAS_BUILD()
- // OS X deprecated these functions, but did not provide a suitable replacement,
- // so ignore the deprecation warning.
- #pragma clang diagnostic push
-@@ -122,6 +135,9 @@ bool Seatbelt::Init(const char* profile, uint64_t flags, std::string* error) {
-   int rv = ::sandbox_init(profile, flags, &errorbuf);
-   return HandleSandboxResult(rv, errorbuf, error);
- #pragma clang diagnostic pop
-+#else
-+  return true;
-+#endif
- }
- 
- // static
-@@ -129,10 +145,14 @@ bool Seatbelt::InitWithParams(const char* profile,
-                               uint64_t flags,
-                               const char* const parameters[],
-                               std::string* error) {
-+#if !IS_MAS_BUILD()
-   char* errorbuf = nullptr;
-   int rv =
-       ::sandbox_init_with_parameters(profile, flags, parameters, &errorbuf);
-   return HandleSandboxResult(rv, errorbuf, error);
-+#else
-+  return true;
-+#endif
- }
- 
- // static
-@@ -140,6 +160,7 @@ bool Seatbelt::Compile(const char* profile,
-                        const Seatbelt::Parameters& params,
-                        std::string& compiled_profile,
-                        std::string* error) {
-+#if !IS_MAS_BUILD()
-   char* errorbuf = nullptr;
-   sandbox_profile_t* sandbox_profile =
-       ::sandbox_compile_string(profile, params.params(), &errorbuf);
-@@ -149,33 +170,44 @@ bool Seatbelt::Compile(const char* profile,
-   compiled_profile.assign(reinterpret_cast<const char*>(sandbox_profile->data),
-                           sandbox_profile->size);
-   ::sandbox_free_profile(sandbox_profile);
-+#endif
-   return true;
- }
- 
- // static
- bool Seatbelt::ApplyCompiledProfile(const std::string& profile,
-                                     std::string* error) {
-+#if !IS_MAS_BUILD()
-   sandbox_profile_t sbox_profile = {
-       .builtin = nullptr,
-       .data = reinterpret_cast<const uint8_t*>(profile.data()),
-       .size = profile.size()};
-   return HandleSandboxErrno(::sandbox_apply(&sbox_profile),
-                             "sandbox_apply: ", error);
-+#else
-+  return true;
-+#endif
- }
- 
- // static
- void Seatbelt::FreeError(char* errorbuf) {
-+#if !IS_MAS_BUILD()
- // OS X deprecated these functions, but did not provide a suitable replacement,
- // so ignore the deprecation warning.
- #pragma clang diagnostic push
- #pragma clang diagnostic ignored "-Wdeprecated-declarations"
-   return ::sandbox_free_error(errorbuf);
- #pragma clang diagnostic pop
-+#endif
- }
- 
- // static
- bool Seatbelt::IsSandboxed() {
-+#if !IS_MAS_BUILD()
-   return ::sandbox_check(getpid(), NULL, 0);
-+#else
-+  return true;
-+#endif
- }
- 
- }  // namespace sandbox
-diff --git a/sandbox/mac/seatbelt_extension.cc b/sandbox/mac/seatbelt_extension.cc
-index 18479382a277cb2b25626ec8d31442bfd1377ee6..7d80d7fa8337523c3a70f317f883f0cc26c6f40b 100644
---- a/sandbox/mac/seatbelt_extension.cc
-+++ b/sandbox/mac/seatbelt_extension.cc
-@@ -11,6 +11,7 @@
- #include "base/notreached.h"
- #include "sandbox/mac/seatbelt_extension_token.h"
- 
-+#if !IS_MAS_BUILD()
- // libsandbox private API.
- extern "C" {
- extern const char* APP_SANDBOX_READ;
-@@ -22,6 +23,7 @@ char* sandbox_extension_issue_file(const char* type,
-                                    const char* path,
-                                    uint32_t flags);
- }
-+#endif
- 
- namespace sandbox {
- 
-@@ -50,7 +52,11 @@ std::unique_ptr<SeatbeltExtension> SeatbeltExtension::FromToken(
- 
- bool SeatbeltExtension::Consume() {
-   DCHECK(!token_.empty());
-+#if !IS_MAS_BUILD()
-   handle_ = sandbox_extension_consume(token_.c_str());
-+#else
-+  handle_ = -1;
-+#endif
-   return handle_ > 0;
- }
- 
-@@ -62,7 +68,11 @@ bool SeatbeltExtension::ConsumePermanently() {
- }
- 
- bool SeatbeltExtension::Revoke() {
-+#if !IS_MAS_BUILD()
-   int rv = sandbox_extension_release(handle_);
-+#else
-+  int rv = -1;
-+#endif
-   handle_ = 0;
-   token_.clear();
-   return rv == 0;
-@@ -80,12 +90,14 @@ SeatbeltExtension::SeatbeltExtension(const std::string& token)
- char* SeatbeltExtension::IssueToken(SeatbeltExtension::Type type,
-                                     const std::string& resource) {
-   switch (type) {
-+#if !IS_MAS_BUILD()
-     case FILE_READ:
-       return sandbox_extension_issue_file(APP_SANDBOX_READ, resource.c_str(),
-                                           0);
-     case FILE_READ_WRITE:
-       return sandbox_extension_issue_file(APP_SANDBOX_READ_WRITE,
-                                           resource.c_str(), 0);
-+#endif
-     default:
-       NOTREACHED();
-       return nullptr;
-diff --git a/ui/accessibility/platform/inspect/ax_transform_mac.mm b/ui/accessibility/platform/inspect/ax_transform_mac.mm
-index c737a2ca1afb44083aef33c6aa4518bea68d1aba..879f1357b5129849c5a1aa1731cf769712569e9e 100644
---- a/ui/accessibility/platform/inspect/ax_transform_mac.mm
-+++ b/ui/accessibility/platform/inspect/ax_transform_mac.mm
-@@ -108,6 +108,7 @@
-     }
-   }
- 
-+#if !IS_MAS_BUILD()
-   // AXTextMarker
-   if (IsAXTextMarker(value)) {
-     return AXTextMarkerToBaseValue(value, indexer);
-@@ -117,6 +118,7 @@
-   if (IsAXTextMarkerRange(value)) {
-     return AXTextMarkerRangeToBaseValue(value, indexer);
-   }
-+#endif
- 
-   // Accessible object
-   if (AXElementWrapper::IsValidElement(value)) {

+ 0 - 40
patches/chromium/mas_use_public_apis_to_determine_if_a_font_is_a_system_font.patch

@@ -1,40 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Samuel Attard <[email protected]>
-Date: Tue, 17 Nov 2020 16:59:28 -0800
-Subject: mas: use public APIs to determine if a font is a system font
-
-CTFontDescriptorIsSystemUIFont is a private API, we're using an
-_interesting_ technique in the MAS build to determine if the font is a
-system font by checking if it's kCTFontPriorityAttribute is set to
-system priority.
-
-diff --git a/ui/gfx/platform_font_mac.mm b/ui/gfx/platform_font_mac.mm
-index b28640bb4d89ba9508d4086c9e5ca9ed4a9a7023..15cb883b91f624c1f23f4458dbf8d14763d11778 100644
---- a/ui/gfx/platform_font_mac.mm
-+++ b/ui/gfx/platform_font_mac.mm
-@@ -28,9 +28,11 @@
- 
- using Weight = Font::Weight;
- 
-+#if !IS_MAS_BUILD()
- extern "C" {
- bool CTFontDescriptorIsSystemUIFont(CTFontDescriptorRef);
- }
-+#endif
- 
- namespace {
- 
-@@ -245,7 +247,13 @@ CTFontRef SystemFontForConstructorOfType(PlatformFontMac::SystemFontType type) {
-   // TODO(avi, etienneb): Figure out this font stuff.
-   base::apple::ScopedCFTypeRef<CTFontDescriptorRef> descriptor(
-       CTFontCopyFontDescriptor(font));
-+#if IS_MAS_BUILD()
-+  CFNumberRef priority = (CFNumberRef)CTFontDescriptorCopyAttribute(descriptor.get(), (CFStringRef)kCTFontPriorityAttribute);
-+  SInt64 v;
-+  if (CFNumberGetValue(priority, kCFNumberSInt64Type, &v) && v == kCTFontPrioritySystem) {
-+#else
-   if (CTFontDescriptorIsSystemUIFont(descriptor.get())) {
-+#endif
-     // Assume it's the standard system font. The fact that this much is known is
-     // enough.
-     return PlatformFontMac::SystemFontType::kGeneral;

+ 2 - 2
patches/chromium/printing.patch

@@ -904,10 +904,10 @@ index c68b68767ac52602981278ec655d9ccfad0c30ab..df2ea4524584417d859e1a22ec8a49c8
    // Calculate number of pages in source document.
    uint32_t CalculateNumberOfPages(blink::WebLocalFrame* frame,
 diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
-index 34e00e884f05ed43d6966372479d268ac4b681ed..264aecf8928c820ac7624d798e834f8056bed405 100644
+index f88d207fc9c8d831334ef0c761099799ed3928d8..83afe4327beefdf494f6b822da2f62a1cfb78484 100644
 --- a/content/browser/BUILD.gn
 +++ b/content/browser/BUILD.gn
-@@ -2992,8 +2992,9 @@ source_set("browser") {
+@@ -2993,8 +2993,9 @@ source_set("browser") {
        "//ppapi/shared_impl",
      ]
  

+ 1 - 25
patches/chromium/render_widget_host_view_mac.patch

@@ -7,10 +7,8 @@ This allows Electron to override `acceptsFirstMouse` on Mac so that windows can
 respond to the first mouse click in their window, which is desirable for some
 kinds of utility windows. Similarly for `disableAutoHideCursor`.
 
-Additionally, disables usage of some private APIs in MAS builds.
-
 diff --git a/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm b/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm
-index 81f705328efd2de0957c1ef309e20c421e0959eb..d6f9998890d7a83a8fb221691aa2f1e761461d52 100644
+index 81f705328efd2de0957c1ef309e20c421e0959eb..47afd2553bf76b5b185a4be131196d90cf9cad44 100644
 --- a/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm
 +++ b/content/app_shim_remote_cocoa/render_widget_host_view_cocoa.mm
 @@ -158,6 +158,15 @@ void ExtractUnderlines(NSAttributedString* string,
@@ -61,25 +59,3 @@ index 81f705328efd2de0957c1ef309e20c421e0959eb..d6f9998890d7a83a8fb221691aa2f1e7
    // We only handle key down events and just simply forward other events.
    if (eventType != NSEventTypeKeyDown) {
      _hostHelper->ForwardKeyboardEvent(event, latency_info);
-@@ -1999,15 +2019,21 @@ - (NSAccessibilityRole)accessibilityRole {
- // Since this implementation doesn't have to wait any IPC calls, this doesn't
- // make any key-typing jank. --hbono 7/23/09
- //
-+#if !IS_MAS_BUILD()
- extern "C" {
- extern NSString* NSTextInputReplacementRangeAttributeName;
- }
-+#endif
- 
- - (NSArray*)validAttributesForMarkedText {
-   // This code is just copied from WebKit except renaming variables.
-   static NSArray* const kAttributes = @[
-     NSUnderlineStyleAttributeName, NSUnderlineColorAttributeName,
-+#if !IS_MAS_BUILD()
-     NSMarkedClauseSegmentAttributeName, NSTextInputReplacementRangeAttributeName
-+#else
-+    NSMarkedClauseSegmentAttributeName
-+#endif
-   ];
-   return kAttributes;
- }