Android Browser Compositor: Add ScheduleComposite() callback.

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 OnSurfaceUpdated(uint64 texture, RenderWidgetHostView* view,
-                        const SurfacePresentedCallback& present_callback);
   gfx::Size GetBounds() { return size_; }
 
  protected:
-  SurfaceUpdatedCallback draw_callback_;
   gfx::Size size_;
 
   DISALLOW_COPY_AND_ASSIGN(DrawDelegateImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_DRAW_DELEGATE_IMPL_H_