Introduce v8-cache-strategies-for-cache-storage setting flags.

content/public/common/web_preferences.h

Index: content/public/common/web_preferences.h
diff --git a/content/public/common/web_preferences.h b/content/public/common/web_preferences.h
index 2a75e3087ba1f60a1ca79502a1c491f00d476037..114c9b233388475edbd94c197ac2f504ba3b2ea3 100644
--- a/content/public/common/web_preferences.h
+++ b/content/public/common/web_preferences.h
@@ -42,6 +42,16 @@ enum V8CacheOptions {
   V8_CACHE_OPTIONS_LAST = V8_CACHE_OPTIONS_CODE
 };
 
+// Strategies to cache V8 data in CacheStorage. (off, normal, or aggressive)
+enum V8CacheStrategiesForCacheStorage {
+  V8_CACHE_STRATEGIES_FOR_CACHE_STORAGE_DEFAULT,
+  V8_CACHE_STRATEGIES_FOR_CACHE_STORAGE_NONE,
+  V8_CACHE_STRATEGIES_FOR_CACHE_STORAGE_NORMAL,
+  V8_CACHE_STRATEGIES_FOR_CACHE_STORAGE_AGGRESSIVE,
+  V8_CACHE_STRATEGIES_FOR_CACHE_STORAGE_LAST =
+      V8_CACHE_STRATEGIES_FOR_CACHE_STORAGE_AGGRESSIVE
+};
+
 // ImageAnimationPolicy is used for controlling image animation
 // when image frame is rendered for animation.
 // See third_party/WebKit/Source/platform/graphics/ImageAnimationPolicy.h
@@ -177,6 +187,7 @@ struct CONTENT_EXPORT WebPreferences {
   bool use_solid_color_scrollbars;
   bool navigate_on_drag_drop;
   V8CacheOptions v8_cache_options;
+  V8CacheStrategiesForCacheStorage v8_cache_strategies_for_cache_storage;
   bool inert_visual_viewport;
   bool record_whole_document;