cc:: Don't use cached screen space transform for layers not in RSLL.

cc/trees/layer_tree_host_impl.h

 // Copyright 2011 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_TREES_LAYER_TREE_HOST_IMPL_H_
 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 611 matching lines @@
 
   // Removes empty or orphan RenderPasses from the frame.
   static void RemoveRenderPasses(FrameData* frame);
 
   LayerTreeHostImplClient* client_;
   TaskRunnerProvider* task_runner_provider_;
 
   BeginFrameTracker current_begin_frame_tracker_;
 
  private:
+  const gfx::Transform LayerScreenSpaceTransform(const LayerImpl* layer);
   gfx::Vector2dF ScrollLayerWithViewportSpaceDelta(
       LayerImpl* layer_impl,
       const gfx::PointF& viewport_point,
       const gfx::Vector2dF& viewport_delta);
 
   void CreateAndSetRenderer();
   void CleanUpTileManagerAndUIResources();
   void CreateTileManagerResources();
   void ReleaseTreeResources();
   void RecreateTreeResources();
@@ skipping 185 matching lines @@
   scoped_ptr<FrameTimingTracker> frame_timing_tracker_;
 
   scoped_ptr<Viewport> viewport_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IMPL_H_