Improve scrolling performance when there are many windowed plugins in a page....

chrome/plugin/webplugin_delegate_stub.h

 // Copyright (c) 2006-2008 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_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_
 #define CHROME_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_
 
 #include <queue>
 
 #include "base/gfx/rect.h"
@@ skipping 47 matching lines @@
   void OnHandleEvent(const NPEvent& event, bool* handled,
                      WebCursor* cursor);
 
   void OnPaint(const gfx::Rect& damaged_rect);
   void OnDidPaint();
 
   void OnPrint(PluginMsg_PrintResponse_Params* params);
 
   void OnUpdateGeometry(const gfx::Rect& window_rect,
                         const gfx::Rect& clip_rect,
-                        const std::vector<gfx::Rect>& cutout_rects,
-                        bool visible,
                         const base::SharedMemoryHandle& windowless_buffer,
                         const base::SharedMemoryHandle& background_buffer);
   void OnGetPluginScriptableObject(int* route_id, void** npobject_ptr);
   void OnSendJavaScriptStream(const std::string& url,
                               const std::wstring& result,
                               bool success, bool notify_needed,
                               int notify_data);
 
   void OnDidReceiveManualResponse(
       const std::string& url,
@@ skipping 18 matching lines @@
 
   scoped_refptr<PluginChannel> channel_;
 
   WebPluginDelegateImpl* delegate_;
   WebPluginProxy* webplugin_;
 
   DISALLOW_EVIL_CONSTRUCTORS(WebPluginDelegateStub);
 };
 
 #endif  // CHROME_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_