cc: Support texture rect targets for masks

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 32c4fe9b50ecae61eb8ed17b1ee8ca75e21096fc..3780917a4812b84baaa310e5e99699f95deff012 100644
--- a/cc/trees/layer_tree_host_impl.h
+++ b/cc/trees/layer_tree_host_impl.h
@@ -483,6 +483,9 @@ class CC_EXPORT LayerTreeHostImpl
   void ResetRequiresHighResToDraw() { requires_high_res_to_draw_ = false; }
   bool RequiresHighResToDraw() const { return requires_high_res_to_draw_; }
 
+  bool CanUseZeroCopyRasterizer() const;
+  bool CanUseOneCopyRasterizer() const;
+
  protected:
   LayerTreeHostImpl(
       const LayerTreeSettings& settings,
@@ -497,9 +500,11 @@ class CC_EXPORT LayerTreeHostImpl
 
   // Virtual for testing.
   virtual void AnimateLayers(base::TimeTicks monotonic_time);
-
-  // Virtual for testing.
   virtual base::TimeDelta LowFrequencyAnimationInterval() const;
+  virtual void CreateResourceAndRasterWorkerPool(
+      scoped_ptr<RasterWorkerPool>* raster_worker_pool,
+      scoped_ptr<ResourcePool>* resource_pool,
+      scoped_ptr<ResourcePool>* staging_resource_pool);
 
   const AnimationRegistrar::AnimationControllerMap&
       active_animation_controllers() const {
@@ -519,8 +524,6 @@ class CC_EXPORT LayerTreeHostImpl
   void EnforceZeroBudget(bool zero_budget);
 
   bool UsePendingTreeForSync() const;
-  bool UseZeroCopyRasterizer() const;
-  bool UseOneCopyRasterizer() const;
 
   // Scroll by preferring to move the outer viewport first, only moving the
   // inner if the outer is at its scroll extents.