Plugin Power Saver: Implement size-based heuristic for peripheral content.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 60fdc726a86e9005a816a5b400dbf8a380c3f9e7..42c58757d5df49dee5419b188339d70f23a78f8e 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -773,6 +773,7 @@ class CONTENT_EXPORT WebContentsImpl
                           bool is_hung);
   void OnPluginCrashed(const base::FilePath& plugin_path,
                        base::ProcessId plugin_pid);
+  void OnPluginContentOriginAllowed(const GURL& content_origin);
   void OnDomOperationResponse(const std::string& json_string,
                               int automation_id);
   void OnAppCacheAccessed(const GURL& manifest_url, bool blocked_by_policy);
@@ -990,6 +991,12 @@ class CONTENT_EXPORT WebContentsImpl
   scoped_ptr<PowerSaveBlocker> audio_power_save_blocker_;
   scoped_ptr<PowerSaveBlocker> video_power_save_blocker_;
 
+#if defined(ENABLE_PLUGINS)
+  // Plugin content origins that have been whitelisted.
+  typedef std::set<GURL> PluginContentOriginSet;
+  PluginContentOriginSet plugin_content_origin_whitelist_;
+#endif
+
   // Manages the frame tree of the page and process swaps in each node.
   FrameTree frame_tree_;