cc: Let skia veto gpu rasterization.

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 <string>
 #include <vector>
 
@@ skipping 110 matching lines @@
   void SyncTiling(const PictureLayerTiling* tiling);
 
   // Mask-related functions
   void SetIsMask(bool is_mask);
   virtual ResourceProvider::ResourceId ContentsResourceId() const OVERRIDE;
 
   virtual size_t GPUMemoryUsageInBytes() const OVERRIDE;
 
   virtual void RunMicroBenchmark(MicroBenchmarkImpl* benchmark) OVERRIDE;
 
-  void SetHasGpuRasterizationHint(bool has_hint);
-  bool ShouldUseGpuRasterization() const;
+  void SetUseGpuRasterization(bool use_gpu);
+  bool ShouldUseGpuRasterization() const { return use_gpu_rasterization_; }
 
   // Functions used by tile manager.
   void DidUnregisterLayer();
   PictureLayerImpl* GetTwinLayer() { return twin_layer_; }
   WhichTree GetTree() const;
   bool IsOnActiveOrPendingTree() const;
 
  protected:
   friend class LayerRasterTileIterator;
 
@@ skipping 56 matching lines @@
   float raster_source_scale_;
   float raster_contents_scale_;
   float low_res_raster_contents_scale_;
 
   bool raster_source_scale_was_animating_;
   bool is_using_lcd_text_;
   bool needs_post_commit_initialization_;
   // A sanity state check to make sure UpdateTilePriorities only gets called
   // after a CalculateContentsScale/ManageTilings.
   bool should_update_tile_priorities_;
-  bool has_gpu_rasterization_hint_;
   bool should_use_low_res_tiling_;
+  bool use_gpu_rasterization_;
 
   bool layer_needs_to_register_itself_;
 
   friend class PictureLayer;
   DISALLOW_COPY_AND_ASSIGN(PictureLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_PICTURE_LAYER_IMPL_H_