cc: Added raster source.

cc/layers/picture_layer_impl.cc

 // 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.
 
 #include "cc/layers/picture_layer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 
@@ skipping 610 matching lines @@
   return layer_tree_impl()->tile_manager()->CreateTile(
       pile_.get(),
       content_rect.size(),
       content_rect,
       tiling->contents_scale(),
       id(),
       layer_tree_impl()->source_frame_number(),
       flags);
 }
 
-PicturePileImpl* PictureLayerImpl::GetPile() {
+RasterSource* PictureLayerImpl::GetRasterSource() {
   return pile_.get();
 }
 
 const Region* PictureLayerImpl::GetInvalidation() {
   return &invalidation_;
 }
 
 const PictureLayerTiling* PictureLayerImpl::GetTwinTiling(
     const PictureLayerTiling* tiling) const {
   if (!twin_layer_)
@@ skipping 1034 matching lines @@
       PictureLayerTilingSet::TilingRange tiling_range = CurrentTilingRange();
       size_t current_tiling_range_offset = current_tiling_ - tiling_range.start;
       return tiling_range.end - 1 - current_tiling_range_offset;
     }
   }
   NOTREACHED();
   return 0;
 }
 
 }  // namespace cc