Only notify V8 once per timezone change

content/renderer/render_view_impl.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 780 matching lines @@
     HTTP_404,
     CONNECTION_ERROR,
   };
 
   static bool IsReload(const FrameMsg_Navigate_Params& params);
 
   static Referrer GetReferrerFromRequest(
       blink::WebFrame* frame,
       const blink::WebURLRequest& request);
 
-  static void NotifyTimezoneChange(blink::WebFrame* frame);
+  static void NotifyTimezoneChange();
 
   static WindowOpenDisposition NavigationPolicyToDisposition(
       blink::WebNavigationPolicy policy);
 
   void UpdateTitle(blink::WebFrame* frame, const base::string16& title,
                    blink::WebTextDirection title_direction);
   void UpdateSessionHistory(blink::WebFrame* frame);
   void SendUpdateState(const blink::WebHistoryItem& item);
 
   // Update current main frame's encoding and send it to browser window.
@@ skipping 626 matching lines @@
   // use the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_