c:: Give the raster source to the PictureLayerTilings.

cc/resources/picture_layer_tiling_set.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_RESOURCES_PICTURE_LAYER_TILING_SET_H_
 #define CC_RESOURCES_PICTURE_LAYER_TILING_SET_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 37 matching lines @@
   const PictureLayerTilingClient* client() const { return client_; }
 
   void CleanUpTilings(float min_acceptable_high_res_scale,
                       float max_acceptable_high_res_scale,
                       const std::vector<PictureLayerTiling*>& needed_tilings,
                       bool should_have_low_res,
                       PictureLayerTilingSet* twin_set,
                       PictureLayerTilingSet* recycled_twin_set);
   void RemoveNonIdealTilings();
 
-  void UpdateTilingsToCurrentRasterSource(RasterSource* raster_source,
-                                          const PictureLayerTilingSet* twin_set,
-                                          const Region& layer_invalidation,
-                                          float minimum_contents_scale,
-                                          float maximum_contents_scale);
+  void UpdateTilingsToCurrentRasterSource(
+      scoped_refptr<RasterSource> raster_source,
+      const PictureLayerTilingSet* twin_set,
+      const Region& layer_invalidation,
+      float minimum_contents_scale,
+      float maximum_contents_scale);
 
   PictureLayerTiling* AddTiling(float contents_scale,
-                                const gfx::Size& layer_bounds);
+                                scoped_refptr<RasterSource> raster_source);
   size_t num_tilings() const { return tilings_.size(); }
   int NumHighResTilings() const;
   PictureLayerTiling* tiling_at(size_t idx) { return tilings_[idx]; }
   const PictureLayerTiling* tiling_at(size_t idx) const {
     return tilings_[idx];
   }
 
   PictureLayerTiling* FindTilingWithScale(float scale) const;
   PictureLayerTiling* FindTilingWithResolution(TileResolution resolution) const;
 
@@ skipping 98 matching lines @@
   const int skewport_extrapolation_limit_in_content_pixels_;
   PictureLayerTilingClient* client_;
 
   friend class Iterator;
   DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingSet);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PICTURE_LAYER_TILING_SET_H_