Fix the painting problem with Stree View and Flash 10. After the size of the...

chrome/renderer/webplugin_delegate_proxy.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_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H__
 #define CHROME_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H__
 
 #include <set>
 #include <string>
 
@@ skipping 132 matching lines @@
   // Clears the shared memory section and canvases used for windowless plugins.
   void ResetWindowlessBitmaps();
 
   // Creates a shared memory section and canvas.
   bool CreateBitmap(scoped_ptr<base::SharedMemory>* memory,
                     scoped_ptr<gfx::PlatformCanvasWin>* canvas);
 
   RenderView* render_view_;
   WebPlugin* plugin_;
   bool windowless_;
-  bool first_paint_;
   scoped_refptr<PluginChannelHost> channel_host_;
   std::string mime_type_;
   std::string clsid_;
   int instance_id_;
   std::wstring plugin_path_;
 
   gfx::Rect plugin_rect_;
   gfx::Rect deferred_clip_rect_;
   std::vector<gfx::Rect> deferred_cutout_rects_;
   bool send_deferred_update_geometry_;
@@ skipping 17 matching lines @@
   // plugin paints into the transport store, and we copy that to our backing
   // store when we get an invalidate from it.  The background bitmap is used
   // for transparent plugins, as they need the backgroud data during painting.
   bool transparent_;
   scoped_ptr<base::SharedMemory> backing_store_;
   scoped_ptr<gfx::PlatformCanvasWin> backing_store_canvas_;
   scoped_ptr<base::SharedMemory> transport_store_;
   scoped_ptr<gfx::PlatformCanvasWin> transport_store_canvas_;
   scoped_ptr<base::SharedMemory> background_store_;
   scoped_ptr<gfx::PlatformCanvasWin> background_store_canvas_;
+  // This lets us know which portion of the backing store has been painted into.
+  gfx::Rect backing_store_painted_;
 
   DISALLOW_EVIL_CONSTRUCTORS(WebPluginDelegateProxy);
 };
 
 #endif  // #ifndef CHROME_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H__