cc: Remove all traces of synchronous GPU rasterization

cc/trees/layer_tree_host_impl.h

Index: cc/trees/layer_tree_host_impl.h
diff --git a/cc/trees/layer_tree_host_impl.h b/cc/trees/layer_tree_host_impl.h
index 74ca5d8257b74ce8e7673af9c26f95aa4f9e6402..f0caf4ddb250e75f7a04a03f245ad1d535ca2b3f 100644
--- a/cc/trees/layer_tree_host_impl.h
+++ b/cc/trees/layer_tree_host_impl.h
@@ -30,7 +30,6 @@
 #include "cc/output/output_surface_client.h"
 #include "cc/output/renderer.h"
 #include "cc/quads/render_pass.h"
-#include "cc/resources/rasterizer.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/tile_manager.h"
 #include "cc/resources/ui_resource_client.h"
@@ -331,7 +330,6 @@ class CC_EXPORT LayerTreeHostImpl
   }
   ResourcePool* resource_pool() { return resource_pool_.get(); }
   Renderer* renderer() { return renderer_.get(); }
-  Rasterizer* rasterizer() { return rasterizer_.get(); }
   const RendererCapabilitiesImpl& GetRendererCapabilities() const;
 
   virtual bool SwapBuffers(const FrameData& frame);
@@ -519,7 +517,6 @@ class CC_EXPORT LayerTreeHostImpl
   // Only valid for synchronous (non-scheduled) single-threaded case.
   void SynchronouslyInitializeAllTiles();
 
-  virtual scoped_ptr<Rasterizer> CreateRasterizer();
   virtual void CreateResourceAndTileTaskWorkerPool(
       scoped_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
       scoped_ptr<ResourcePool>* resource_pool,
@@ -656,7 +653,6 @@ class CC_EXPORT LayerTreeHostImpl
   bool use_gpu_rasterization_;
   GpuRasterizationStatus gpu_rasterization_status_;
   scoped_ptr<TileTaskWorkerPool> tile_task_worker_pool_;
-  scoped_ptr<Rasterizer> rasterizer_;
   scoped_ptr<ResourcePool> resource_pool_;
   scoped_ptr<ResourcePool> staging_resource_pool_;
   scoped_ptr<Renderer> renderer_;