Add ZoomLevelChanged and DidChangeScrollOffset to RenderViewObserver

content/public/renderer/render_view_observer.h

 // Copyright (c) 2011 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_PUBLIC_RENDERER_RENDER_VIEW_OBSERVER_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_VIEW_OBSERVER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
@@ skipping 50 matching lines @@
   virtual void FrameDetached(WebKit::WebFrame* frame) {}
   virtual void FrameWillClose(WebKit::WebFrame* frame) {}
   virtual void WillSubmitForm(WebKit::WebFrame* frame,
                               const WebKit::WebFormElement& form) {}
   virtual void DidCreateDataSource(WebKit::WebFrame* frame,
                                    WebKit::WebDataSource* ds) {}
   virtual void PrintPage(WebKit::WebFrame* frame) {}
   virtual void FocusedNodeChanged(const WebKit::WebNode& node) {}
   virtual void WillCreateMediaPlayer(WebKit::WebFrame* frame,
                                      WebKit::WebMediaPlayerClient* client) {}
+  virtual void ZoomLevelChanged() {};
+  virtual void DidChangeScrollOffset(WebKit::WebFrame* frame) {}
 
   // These match the RenderView methods.
   virtual void DidHandleMouseEvent(const WebKit::WebMouseEvent& event) {}
   virtual void DidHandleTouchEvent(const WebKit::WebTouchEvent& event) {}
 
   // These match incoming IPCs.
   virtual void ContextMenuAction(unsigned id) {}
   virtual void Navigate(const GURL& url) {}
   virtual void ClosePage() {}
 
@@ skipping 18 matching lines @@
   RenderView* render_view_;
   // The routing ID of the associated RenderView.
   int routing_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_VIEW_OBSERVER_H_