feat: add V8CacheOptions webpreference (#23869)

* feat: add V8CacheOptions webpreference

* address review comments

Co-authored-by: deepak1556 <[email protected]>

docs/api/browser-window.md

@@ -390,6 +390,13 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       Default is `false`.
     * `enableWebSQL` Boolean (optional) - Whether to enable the [WebSQL api](https://www.w3.org/TR/webdatabase/).
       Default is `true`.
+    * `v8CacheOptions` String (optional) - Enforces the v8 code caching policy
+      used by blink. Accepted values are
+      * `none` - Disables code caching
+      * `code` - Heuristic based code caching
+      * `bypassHeatCheck` - Bypass code caching heuristics but with lazy compilation
+      * `bypassHeatCheckAndEagerCompile` - Same as above except compilation is eager.
+      Default policy is `code`.
 
 When setting minimum or maximum window size with `minWidth`/`maxWidth`/
 `minHeight`/`maxHeight`, it only constrains the users. It won't prevent you from

shell/browser/web_contents_preferences.cc

@@ -26,6 +26,7 @@
 #include "shell/browser/web_view_manager.h"
 #include "shell/common/native_mate_converters/value_converter.h"
 #include "shell/common/options_switches.h"
+#include "third_party/blink/public/mojom/v8_cache_options.mojom.h"
 
 #if defined(OS_WIN)
 #include "ui/gfx/switches.h"
@@ -489,6 +490,23 @@ void WebContentsPreferences::OverrideWebkitPrefs(
   std::string encoding;
   if (GetAsString(&preference_, "defaultEncoding", &encoding))
     prefs->default_encoding = encoding;
+
+  std::string v8_cache_options;
+  if (GetAsString(&preference_, "v8CacheOptions", &v8_cache_options)) {
+    if (v8_cache_options == "none") {
+      prefs->v8_cache_options = blink::mojom::V8CacheOptions::kNone;
+    } else if (v8_cache_options == "code") {
+      prefs->v8_cache_options = blink::mojom::V8CacheOptions::kCode;
+    } else if (v8_cache_options == "bypassHeatCheck") {
+      prefs->v8_cache_options =
+          blink::mojom::V8CacheOptions::kCodeWithoutHeatCheck;
+    } else if (v8_cache_options == "bypassHeatCheckAndEagerCompile") {
+      prefs->v8_cache_options =
+          blink::mojom::V8CacheOptions::kFullCodeWithoutHeatCheck;
+    } else {
+      prefs->v8_cache_options = blink::mojom::V8CacheOptions::kDefault;
+    }
+  }
 }
 
 WEB_CONTENTS_USER_DATA_KEY_IMPL(WebContentsPreferences)