From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: deepak1556 Date: Mon, 18 May 2020 11:12:26 -0700 Subject: allow disabling blink scheduler throttling per RenderView This allows us to disable throttling for hidden windows. diff --git a/content/browser/renderer_host/navigation_controller_impl_unittest.cc b/content/browser/renderer_host/navigation_controller_impl_unittest.cc index 68ef2666b57f95f0a4f463c34ca4b074b9e38d87..d399155b4221f4ea49cc57b14d2cd08493d040e7 100644 --- a/content/browser/renderer_host/navigation_controller_impl_unittest.cc +++ b/content/browser/renderer_host/navigation_controller_impl_unittest.cc @@ -163,6 +163,12 @@ class MockPageBroadcast : public blink::mojom::PageBroadcast { (network::mojom::AttributionSupport support), (override)); + MOCK_METHOD( + void, + SetSchedulerThrottling, + (bool allowed), + (override)); + mojo::PendingAssociatedRemote GetRemote() { return receiver_.BindNewEndpointAndPassDedicatedRemote(); } diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc index c398dc84de605c7feef92fda30b25297a12273b0..747d5d9e09c4c002a5f38483ef0022d263cddbe6 100644 --- a/content/browser/renderer_host/render_view_host_impl.cc +++ b/content/browser/renderer_host/render_view_host_impl.cc @@ -737,6 +737,11 @@ void RenderViewHostImpl::SetBackgroundOpaque(bool opaque) { GetWidget()->GetAssociatedFrameWidget()->SetBackgroundOpaque(opaque); } +void RenderViewHostImpl::SetSchedulerThrottling(bool allowed) { + if (auto& broadcast = GetAssociatedPageBroadcast()) + broadcast->SetSchedulerThrottling(allowed); +} + bool RenderViewHostImpl::IsMainFrameActive() { return is_active(); } diff --git a/content/browser/renderer_host/render_view_host_impl.h b/content/browser/renderer_host/render_view_host_impl.h index 779e90581cdfb2d1bdd904da038f7537d0477f5a..c85620ac2f30998d1b67f159e50ee72221bf0dad 100644 --- a/content/browser/renderer_host/render_view_host_impl.h +++ b/content/browser/renderer_host/render_view_host_impl.h @@ -139,6 +139,7 @@ class CONTENT_EXPORT RenderViewHostImpl void EnablePreferredSizeMode() override; void WriteIntoTrace(perfetto::TracedProto context) const override; + void SetSchedulerThrottling(bool allowed) override; void SendWebPreferencesToRenderer(); void SendRendererPreferencesToRenderer( const blink::RendererPreferences& preferences); diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc index 88d3d0e598abfc2a0fa935fb90046c0b420deec1..94e4faa943981c0fbcbbb527b1338e452bb978eb 100644 --- a/content/browser/renderer_host/render_widget_host_view_aura.cc +++ b/content/browser/renderer_host/render_widget_host_view_aura.cc @@ -580,8 +580,8 @@ void RenderWidgetHostViewAura::ShowImpl(PageVisibilityState page_visibility) { // OnShowWithPageVisibility will not call NotifyHostAndDelegateOnWasShown, // which updates `visibility_`, unless the host is hidden. Make sure no update // is needed. - CHECK(host_->is_hidden() || visibility_ == Visibility::VISIBLE); - OnShowWithPageVisibility(page_visibility); + if (host_->is_hidden() || visibility_ == Visibility::VISIBLE) + OnShowWithPageVisibility(page_visibility); } void RenderWidgetHostViewAura::EnsurePlatformVisibility( diff --git a/content/public/browser/render_view_host.h b/content/public/browser/render_view_host.h index 20ca763ff7f55e8176b77349b41917b11e051ae6..a50c122064b5f0092f57e3d508fb19389b72203b 100644 --- a/content/public/browser/render_view_host.h +++ b/content/public/browser/render_view_host.h @@ -75,6 +75,9 @@ class CONTENT_EXPORT RenderViewHost { virtual void WriteIntoTrace( perfetto::TracedProto context) const = 0; + // Disable/Enable scheduler throttling. + virtual void SetSchedulerThrottling(bool allowed) {} + private: // This interface should only be implemented inside content. friend class RenderViewHostImpl; diff --git a/content/test/test_page_broadcast.h b/content/test/test_page_broadcast.h index 603798ae0d45836f1bf3e6608761ce1467303310..2d8caa06e418f123d7565b96d40c66fb51617a6d 100644 --- a/content/test/test_page_broadcast.h +++ b/content/test/test_page_broadcast.h @@ -50,6 +50,7 @@ class TestPageBroadcast : public blink::mojom::PageBroadcast { network::mojom::AttributionSupport support) override; void UpdateColorProviders( const blink::ColorProviderColorMaps& color_provider_colors) override; + void SetSchedulerThrottling(bool allowed) override {} mojo::AssociatedReceiver receiver_; }; diff --git a/third_party/blink/public/mojom/page/page.mojom b/third_party/blink/public/mojom/page/page.mojom index c980f3f76a37a4207bb54f18fbcdb8d0950c8856..91a9dfe56fbbcd1cc873add438947dd29c7e6646 100644 --- a/third_party/blink/public/mojom/page/page.mojom +++ b/third_party/blink/public/mojom/page/page.mojom @@ -173,4 +173,7 @@ interface PageBroadcast { // 2. The ColorProvider associated with the WebContents changes as a result // of theme changes. UpdateColorProviders(ColorProviderColorMaps color_provider_colors); + + // Whether to enable the Renderer scheduler background throttling. + SetSchedulerThrottling(bool allowed); }; diff --git a/third_party/blink/public/web/web_view.h b/third_party/blink/public/web/web_view.h index 4220a0aebf4a2ce3d62f76c441b6ec1b5e11ffa1..6ea17602d2b186b81cf7dc69750bd302ff717aea 100644 --- a/third_party/blink/public/web/web_view.h +++ b/third_party/blink/public/web/web_view.h @@ -362,6 +362,7 @@ class BLINK_EXPORT WebView { // Scheduling ----------------------------------------------------------- virtual PageScheduler* Scheduler() const = 0; + virtual void SetSchedulerThrottling(bool allowed) {} // Visibility ----------------------------------------------------------- diff --git a/third_party/blink/renderer/core/exported/web_view_impl.cc b/third_party/blink/renderer/core/exported/web_view_impl.cc index 952d182bf322e48e79d87951f96d34bbd346c465..a9c3476669853ff87c699ddc82fa465ed3924eb1 100644 --- a/third_party/blink/renderer/core/exported/web_view_impl.cc +++ b/third_party/blink/renderer/core/exported/web_view_impl.cc @@ -2467,6 +2467,10 @@ void WebViewImpl::SetPageLifecycleStateInternal( TRACE_EVENT2("navigation", "WebViewImpl::SetPageLifecycleStateInternal", "old_state", old_state, "new_state", new_state); + // If backgroundThrottling is disabled, the page is always visible. + if (!scheduler_throttling_allowed_) + new_state->visibility = mojom::blink::PageVisibilityState::kVisible; + bool storing_in_bfcache = new_state->is_in_back_forward_cache && !old_state->is_in_back_forward_cache; bool restoring_from_bfcache = !new_state->is_in_back_forward_cache && @@ -3985,10 +3989,23 @@ PageScheduler* WebViewImpl::Scheduler() const { return GetPage()->GetPageScheduler(); } +void WebViewImpl::SetSchedulerThrottling(bool allowed) { + DCHECK(GetPage()); + scheduler_throttling_allowed_ = allowed; + GetPage()->GetPageScheduler()->SetPageVisible(!allowed || GetVisibilityState() == mojom::blink::PageVisibilityState::kVisible); +} + void WebViewImpl::SetVisibilityState( mojom::blink::PageVisibilityState visibility_state, bool is_initial_state) { DCHECK(GetPage()); + + if (!scheduler_throttling_allowed_) { + GetPage()->SetVisibilityState(mojom::blink::PageVisibilityState::kVisible, is_initial_state); + GetPage()->GetPageScheduler()->SetPageVisible(true); + return; + } + GetPage()->SetVisibilityState(visibility_state, is_initial_state); // Do not throttle if the page should be painting. bool is_visible = diff --git a/third_party/blink/renderer/core/exported/web_view_impl.h b/third_party/blink/renderer/core/exported/web_view_impl.h index 6bc36c658b6574756d850ad85cb7200e374fdfca..95d8489d6ec2687c7cadb892ed06458773c2b500 100644 --- a/third_party/blink/renderer/core/exported/web_view_impl.h +++ b/third_party/blink/renderer/core/exported/web_view_impl.h @@ -446,6 +446,7 @@ class CORE_EXPORT WebViewImpl final : public WebView, LocalDOMWindow* PagePopupWindow() const; PageScheduler* Scheduler() const override; + void SetSchedulerThrottling(bool allowed) override; void SetVisibilityState(mojom::blink::PageVisibilityState visibility_state, bool is_initial_state) override; mojom::blink::PageVisibilityState GetVisibilityState() override; @@ -927,6 +928,8 @@ class CORE_EXPORT WebViewImpl final : public WebView, // If true, we send IPC messages when |preferred_size_| changes. bool send_preferred_size_changes_ = false; + bool scheduler_throttling_allowed_ = true; + // Whether the preferred size may have changed and |UpdatePreferredSize| needs // to be called. bool needs_preferred_size_update_ = true;