cc: Get rid of rasterizer delegate.

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 3975e61e2be5fd23e5e4b22932c4d856dc00d776..7d4e36da78569a012457e5afdf58ff4cd271f9bb 100644
--- a/cc/trees/layer_tree_host_impl.h
+++ b/cc/trees/layer_tree_host_impl.h
@@ -483,15 +483,9 @@ class CC_EXPORT LayerTreeHostImpl
   Proxy* proxy_;
 
  private:
-  void CreateAndSetRenderer(
-      OutputSurface* output_surface,
-      ResourceProvider* resource_provider,
-      bool skip_gl_renderer);
-  void CreateAndSetTileManager(ResourceProvider* resource_provider,
-                               ContextProvider* context_provider,
-                               bool use_zero_copy,
-                               bool use_one_copy,
-                               bool allow_rasterize_on_demand);
+  void CreateAndSetRenderer(bool skip_gl_renderer);
+  void CreateAndSetTileManager(ContextProvider* context_provider);
+  void DestroyTileManager();
   void ReleaseTreeResources();
   void EnforceZeroBudget(bool zero_budget);
 
@@ -563,7 +557,6 @@ class CC_EXPORT LayerTreeHostImpl
   scoped_ptr<TileManager> tile_manager_;
   bool use_gpu_rasterization_;
   scoped_ptr<RasterWorkerPool> raster_worker_pool_;
-  scoped_ptr<RasterWorkerPool> direct_raster_worker_pool_;
   scoped_ptr<ResourcePool> resource_pool_;
   scoped_ptr<ResourcePool> staging_resource_pool_;
   scoped_ptr<Renderer> renderer_;