Rename classes related to top controls

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 513 matching lines @@
     layerConfigChanged = true;
 
   bool needsDescendantsClippingLayer =
       compositor->clipsCompositingDescendants(&m_owningLayer);
 
   // Our scrolling layer will clip.
   if (m_owningLayer.needsCompositedScrolling())
     needsDescendantsClippingLayer = false;
 
   // We disable clipping on ancestor layers of the root scroller to give it
-  // the same behavior w.r.t top controls as the real root layer. See the
+  // the same behavior w.r.t browser controls as the real root layer. See the
   // RootScrollerController class for more details.
   if (m_owningLayer.hasRootScrollerAsDescendant())
     needsDescendantsClippingLayer = false;
 
   const PaintLayer* scrollParent = this->scrollParent();
 
   // This is required because compositing layers are parented according to the
   // z-order hierarchy, yet clipping goes down the layoutObject hierarchy. Thus,
   // a PaintLayer can be clipped by a PaintLayer that is an ancestor in the
   // layoutObject hierarchy, but a sibling in the z-order hierarchy. Further,
@@ skipping 2704 matching lines @@
   } else if (graphicsLayer == m_scrollingContentsLayer.get()) {
     name = "Scrolling Contents Layer";
   } else {
     ASSERT_NOT_REACHED();
   }
 
   return name;
 }
 
 }  // namespace blink