Very basic Android browser-side compositing support.

content/browser/android/draw_delegate_impl.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_BROWSER_ANDROID_DRAW_DELEGATE_IMPL_H_
-#define CONTENT_BROWSER_ANDROID_DRAW_DELEGATE_IMPL_H_
-
-#include "base/callback.h"
-#include "content/public/browser/android/draw_delegate.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/size.h"
-
-namespace content {
-
-class DrawDelegateImpl : public DrawDelegate {
- public:
-  static DrawDelegateImpl* GetInstance();
-  DrawDelegateImpl();
-  virtual ~DrawDelegateImpl();
-
-  // DrawDelegate implementation.
-  virtual void SetUpdateCallback(
-      const SurfaceUpdatedCallback& callback) OVERRIDE;
-  virtual void SetBounds(const gfx::Size& size) OVERRIDE;
-
-  void SetDrawSurface(gfx::GLSurfaceHandle handle) { handle_ = handle; }
-  void OnSurfaceUpdated(uint64 texture, RenderWidgetHostView* view,
-                        const SurfacePresentedCallback& present_callback);
-  gfx::Size GetBounds() { return size_; }
-  gfx::GLSurfaceHandle GetDrawSurface() { return handle_; }
-
- protected:
-  SurfaceUpdatedCallback draw_callback_;
-  gfx::GLSurfaceHandle handle_;
-  gfx::Size size_;
-
-  DISALLOW_COPY_AND_ASSIGN(DrawDelegateImpl);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_ANDROID_DRAW_DELEGATE_IMPL_H_