cc: Remove the base RasterSource

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 48 matching lines @@
   const Region* GetPendingInvalidation() override;
   const PictureLayerTiling* GetPendingOrActiveTwinTiling(
       const PictureLayerTiling* tiling) const override;
   bool HasValidTilePriorities() const override;
   bool RequiresHighResToDraw() const override;
   gfx::Rect GetEnclosingRectInTargetSpace() const override;
 
   void set_gpu_raster_max_texture_size(gfx::Size gpu_raster_max_texture_size) {
     gpu_raster_max_texture_size_ = gpu_raster_max_texture_size;
   }
-  void UpdateRasterSource(scoped_refptr<RasterSource> raster_source,
+  void UpdateRasterSource(scoped_refptr<DisplayListRasterSource> raster_source,
                           Region* new_invalidation,
                           const PictureLayerTilingSet* pending_set);
   bool UpdateTiles(bool resourceless_software_draw);
   void UpdateCanUseLCDTextAfterCommit();
   bool RasterSourceUsesLCDText() const;
   WhichTree GetTree() const;
 
   // Mask-related functions.
   void GetContentsResourceId(ResourceId* resource_id,
                              gfx::Size* resource_size) const override;
 
   void SetNearestNeighbor(bool nearest_neighbor);
 
   size_t GPUMemoryUsageInBytes() const override;
 
   void RunMicroBenchmark(MicroBenchmarkImpl* benchmark) override;
 
   bool CanHaveTilings() const;
 
   PictureLayerTilingSet* picture_layer_tiling_set() { return tilings_.get(); }
 
   // Functions used by tile manager.
   PictureLayerImpl* GetPendingOrActiveTwinLayer() const;
   bool IsOnActiveOrPendingTree() const;
 
   // Used for benchmarking
-  RasterSource* GetRasterSource() const { return raster_source_.get(); }
+  DisplayListRasterSource* GetRasterSource() const {
+    return raster_source_.get();
+  }
 
  protected:
   friend class LayerRasterTileIterator;
   using TileRequirementCheck = bool (PictureLayerTiling::*)(const Tile*) const;
 
   PictureLayerImpl(LayerTreeImpl* tree_impl,
                    int id,
                    bool is_mask,
                    scoped_refptr<SyncedScrollOffset> scroll_offset);
   PictureLayerTiling* AddTiling(float contents_scale);
@@ skipping 18 matching lines @@
       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_;
+  scoped_refptr<DisplayListRasterSource> raster_source_;
   Region invalidation_;
 
   float ideal_page_scale_;
   float ideal_device_scale_;
   float ideal_source_scale_;
   float ideal_contents_scale_;
 
   float raster_page_scale_;
   float raster_device_scale_;
   float raster_source_scale_;
@@ skipping 24 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_