cc: Make Picture/PicturePile handle recording/raster

cc/picture_layer_impl.h

 // Copyright 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 CC_PICTURE_LAYER_IMPL_H_
 #define CC_PICTURE_LAYER_IMPL_H_
 
 #include "cc/layer_impl.h"
 #include "cc/picture_pile.h"
 
 namespace cc {
 
+struct AppendQuadsData;
+class QuadSink;
+
 class CC_EXPORT PictureLayerImpl : public LayerImpl {
 public:
   static scoped_ptr<PictureLayerImpl> create(int id)
   {
       return make_scoped_ptr(new PictureLayerImpl(id));
   }
   virtual ~PictureLayerImpl();
 
+  // LayerImpl overrides.
+  virtual const char* layerTypeAsString() const OVERRIDE;
+  virtual void appendQuads(QuadSink&, AppendQuadsData&) OVERRIDE;
+  virtual void dumpLayerProperties(std::string*, int indent) const OVERRIDE;
+
 protected:
   PictureLayerImpl(int id);
 
   PicturePile pile_;
 
   friend class PictureLayer;
   DISALLOW_COPY_AND_ASSIGN(PictureLayerImpl);
 };
 
 }
 
 #endif  // CC_PICTURE_LAYER_IMPL_H_