cc : Make CallFunctionForSubtree on impl use layer iterator

cc/debug/debug_rect_history.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_DEBUG_DEBUG_RECT_HISTORY_H_
 #define CC_DEBUG_DEBUG_RECT_HISTORY_H_
 
 #include <vector>
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/layer_collections.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace cc {
 
 class LayerImpl;
 class LayerTreeDebugState;
+class LayerTreeImpl;
 
 // There are currently six types of debug rects:
 //
 // - Paint rects (update rects): regions of a layer that needed to be
 // re-uploaded to the texture resource; in most cases implying that they had to
 // be repainted, too.
 //
 // - Property-changed rects: enclosing bounds of layers that cause changes to
 // the screen even if the layer did not change internally. (For example, if the
 // layer's opacity or position changes.)
@@ skipping 49 matching lines @@
  private:
   DebugRectHistory();
 
   void SavePaintRects(LayerImpl* layer);
   void SavePropertyChangedRects(const LayerImplList& render_surface_layer_list,
                                 LayerImpl* hud_layer);
   void SaveSurfaceDamageRects(
       const LayerImplList& render_surface_layer_list);
   void SaveScreenSpaceRects(
       const LayerImplList& render_surface_layer_list);
-  void SaveTouchEventHandlerRects(LayerImpl* layer);
+  void SaveTouchEventHandlerRects(LayerTreeImpl* layer);
   void SaveTouchEventHandlerRectsCallback(LayerImpl* layer);
   void SaveWheelEventHandlerRects(LayerImpl* layer);
-  void SaveScrollEventHandlerRects(LayerImpl* layer);
+  void SaveScrollEventHandlerRects(LayerTreeImpl* layer);
   void SaveScrollEventHandlerRectsCallback(LayerImpl* layer);
-  void SaveNonFastScrollableRects(LayerImpl* layer);
+  void SaveNonFastScrollableRects(LayerTreeImpl* layer);
   void SaveNonFastScrollableRectsCallback(LayerImpl* layer);
   void SaveLayerAnimationBoundsRects(
       const LayerImplList& render_surface_layer_list);
 
   std::vector<DebugRect> debug_rects_;
 
   DISALLOW_COPY_AND_ASSIGN(DebugRectHistory);
 };
 
 }  // namespace cc
 
 #endif  // CC_DEBUG_DEBUG_RECT_HISTORY_H_