Update from chromium https://crrev.com/301725/

cc/resources/raster_buffer.h

 // Copyright 2014 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 CC_RESOURCES_RASTER_BUFFER_H_
 #define CC_RESOURCES_RASTER_BUFFER_H_
 
 #include "cc/base/cc_export.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace cc {
-class PicturePileImpl;
+class RasterSource;
 class RenderingStatsInstrumentation;
 
 class CC_EXPORT RasterBuffer {
  public:
   RasterBuffer();
   virtual ~RasterBuffer();
 
-  virtual void Playback(const PicturePileImpl* picture_pile,
+  virtual void Playback(const RasterSource* raster_source,
                         const gfx::Rect& rect,
                         float scale,
                         RenderingStatsInstrumentation* stats) = 0;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RASTER_BUFFER_H_