Deleted code associated with --enable-gpu-rendering and...

chrome/browser/renderer_host/backing_store_proxy.h

-// Copyright (c) 2010 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_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
-#define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
-#pragma once
-
-#include "base/basictypes.h"
-#include "chrome/browser/renderer_host/backing_store.h"
-#include "ipc/ipc_channel.h"
-
-class GpuProcessHostUIShim;
-
-class BackingStoreProxy : public BackingStore,
-                          public IPC::Channel::Listener {
- public:
-  BackingStoreProxy(RenderWidgetHost* widget, const gfx::Size& size,
-                    GpuProcessHostUIShim* process_shim, int32 routing_id);
-  virtual ~BackingStoreProxy();
-
-  // BackingStore implementation.
-  virtual void PaintToBackingStore(RenderProcessHost* process,
-                                   TransportDIB::Id bitmap,
-                                   const gfx::Rect& bitmap_rect,
-                                   const std::vector<gfx::Rect>& copy_rects,
-                                   bool* painted_synchronously);
-  virtual bool CopyFromBackingStore(const gfx::Rect& rect,
-                                    skia::PlatformCanvas* output);
-  virtual void ScrollBackingStore(int dx, int dy,
-                                  const gfx::Rect& clip_rect,
-                                  const gfx::Size& view_size);
-
-  // IPC::Channel::Listener implementation.
-  virtual void OnMessageReceived(const IPC::Message& message);
-  virtual void OnChannelConnected(int32 peer_pid);
-  virtual void OnChannelError();
-
- private:
-  // Message handlers.
-  void OnPaintToBackingStoreACK();
-
-  GpuProcessHostUIShim* process_shim_;
-  int32 routing_id_;
-
-  // Set to true when we're waiting for the GPU process to do a paint and send
-  // back a "done" message. In this case, the renderer will be waiting for our
-  // message that we're done using the backing store.
-  bool waiting_for_paint_ack_;
-
-  DISALLOW_COPY_AND_ASSIGN(BackingStoreProxy);
-};
-
-#endif  // CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_