cc: Move raster_source from Tile to PrioritizedTile

cc/layers/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_LAYERS_PICTURE_LAYER_IMPL_H_
 #define CC_LAYERS_PICTURE_LAYER_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 106 matching lines @@
   float MinimumContentsScale() const;
   float MaximumContentsScale() const;
   void ResetRasterScale();
   void UpdateViewportRectForTilePriorityInContentSpace();
   PictureLayerImpl* GetRecycledTwinLayer() const;
 
   void SanityCheckTilingState() const;
   bool ShouldAdjustRasterScaleDuringScaleAnimations() const;
 
   void GetDebugBorderProperties(SkColor* color, float* width) const override;
-  void GetAllTilesAndPrioritiesForTracing(
-      std::map<const Tile*, TilePriority>* tile_map) const override;
+  void GetAllPrioritizedTilesForTracing(
+      std::vector<PrioritizedTile>* prioritized_tiles) const override;
   void AsValueInto(base::trace_event::TracedValue* dict) const override;
 
   virtual void UpdateIdealScales();
   float MaximumTilingContentsScale() const;
   scoped_ptr<PictureLayerTilingSet> CreatePictureLayerTilingSet();
 
   PictureLayerImpl* twin_layer_;
 
   scoped_ptr<PictureLayerTilingSet> tilings_;
   scoped_refptr<RasterSource> raster_source_;
@@ skipping 34 matching lines @@
   // of comparing pointers, since objects pointed to are not guaranteed to
   // exist.
   std::vector<PictureLayerTiling*> last_append_quads_tilings_;
 
   DISALLOW_COPY_AND_ASSIGN(PictureLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_PICTURE_LAYER_IMPL_H_