Mac: Fix renderer idle cpu usage regression.

chrome/browser/renderer_host/render_view_host.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 444 matching lines @@
                      const std::string& target_lang);
 
   // Reverts the text of current page to its original (non-translated) contents.
   void RevertTranslation(int page_id);
 
   // Informs renderer of updated content settings.
   void SendContentSettings(const GURL& url,
                            const ContentSettings& settings);
 
   // Tells the renderer to notify us when the page contents preferred size
   // changed.

[Jay Civelli, 2010/05/24 17:17:56]

Could you add a comment on where these flags are defined?

[Nico, 2010/05/24 17:25:16]

Done.

-  void EnablePreferredSizeChangedMode();
+  void EnablePreferredSizeChangedMode(int flags);
 
  protected:
   // RenderWidgetHost protected overrides.
   virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                                       bool* is_keyboard_shortcut);
   virtual void UnhandledKeyboardEvent(const NativeWebKeyboardEvent& event);
   virtual void OnUserGesture();
   virtual void NotifyRendererUnresponsive();
   virtual void NotifyRendererResponsive();
   virtual void OnMsgFocusedNodeChanged();
@@ skipping 230 matching lines @@
   int64 session_storage_namespace_id_;
 
   // Whether this render view will be used for extensions. This controls
   // what process type we use.
   bool is_extension_process_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_