Get windowless plugins working when accelerated compositing is turned on.

content/renderer/webplugin_delegate_proxy.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_WEBPLUGIN_DELEGATE_PROXY_H_
 #define CONTENT_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 189 matching lines @@
 #endif
 
   void OnURLRedirectResponse(bool allow, int resource_id);
 
   // Helper function that sends the UpdateGeometry message.
   void SendUpdateGeometry(bool bitmaps_changed);
 
   // Draw a graphic indicating a crashed plugin.
   void PaintSadPlugin(WebKit::WebCanvas* canvas, const gfx::Rect& rect);
 
-  // Returns true if the given rectangle is different in the native drawing
-  // context and the current background bitmap.
-  bool BackgroundChanged(gfx::NativeDrawingContext context,
-                         const gfx::Rect& rect);
-
   // Copies the given rectangle from the back-buffer transport_stores_ bitmap to
   // the front-buffer transport_stores_ bitmap.
   void CopyFromBackBufferToFrontBuffer(const gfx::Rect& rect);
 
   // Updates the front-buffer with the given rectangle from the back-buffer,
   // either by copying the rectangle or flipping the buffers.
   void UpdateFrontBuffer(const gfx::Rect& rect, bool allow_buffer_flipping);
 
   // Clears the shared memory section and canvases used for windowless plugins.
   void ResetWindowlessBitmaps();
@@ skipping 76 matching lines @@
   // Event passed in by the plugin process and is used to decide if messages
   // need to be pumped in the NPP_HandleEvent sync call.
   scoped_ptr<base::WaitableEvent> modal_loop_pump_messages_event_;
 
   // Bitmap for crashed plugin
   SkBitmap* sad_plugin_;
 
   // True if we got an invalidate from the plugin and are waiting for a paint.
   bool invalidate_pending_;
 
-  // Used to desynchronize windowless painting.  When WebKit paints, we bitblt
-  // from our front buffer store of what the plugin rectangle looks like.  The
-  // plugin paints into the back buffer store, and we swap the buffers when we
-  // get an invalidate from it.  The background bitmap is used for transparent
-  // plugins, as they need the background data during painting.
-  bool transparent_;
   // The index in the transport_stores_ array of the current front buffer
   // (i.e., the buffer to display).
   int front_buffer_index_;
   SharedBitmap transport_stores_[2];
-  SharedBitmap background_store_;
   // This lets us know the total portion of the transport store that has been
   // painted since the buffers were created.
   gfx::Rect transport_store_painted_;
   // This is a bounding box on the portion of the front-buffer that was painted
   // on the last buffer flip and which has not yet been re-painted in the
   // back-buffer.
   gfx::Rect front_buffer_diff_;
 
   // The url of the main frame hosting the plugin.
   GURL page_url_;
 
   DISALLOW_COPY_AND_ASSIGN(WebPluginDelegateProxy);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H_