Set overflowControlsHost layer bounds.

Source/core/rendering/RenderLayerCompositor.cpp

 /*
  * Copyright (C) 2009, 2010 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 1111 matching lines @@
 }
 
 void RenderLayerCompositor::frameViewDidChangeLocation(const IntPoint& contentsOffset)
 {
     if (m_overflowControlsHostLayer)
         m_overflowControlsHostLayer->setPosition(contentsOffset);
 }
 
 void RenderLayerCompositor::frameViewDidChangeSize()
 {
+    FrameView* frameView = m_renderView->frameView();
     if (m_containerLayer) {
-        FrameView* frameView = m_renderView->frameView();
         m_containerLayer->setSize(frameView->unscaledVisibleContentSize());
 
         frameViewDidScroll();
         updateOverflowControlsLayers();
 
 #if ENABLE(RUBBER_BANDING)
         if (m_layerForOverhangAreas)
             m_layerForOverhangAreas->setSize(frameView->frameRect().size());
 #endif
     }
+    if (m_overflowControlsHostLayer)
+        m_overflowControlsHostLayer->setSize(frameView->unscaledVisibleContentSize(ScrollableArea::IncludeScrollbars));
 }
 
 void RenderLayerCompositor::frameViewDidScroll()
 {
     FrameView* frameView = m_renderView->frameView();
     IntPoint scrollPosition = frameView->scrollPosition();
 
     if (!m_scrollLayer)
         return;
 
@@ skipping 327 matching lines @@
     clearBackingForLayerIncludingDescendants(m_renderView->layer());
 }
 
 void RenderLayerCompositor::updateRootLayerPosition()
 {
     if (m_rootContentLayer) {
         const IntRect& documentRect = m_renderView->documentRect();
         m_rootContentLayer->setSize(documentRect.size());
         m_rootContentLayer->setPosition(documentRect.location());
     }
-    if (m_containerLayer) {
-        FrameView* frameView = m_renderView->frameView();
+    FrameView* frameView = m_renderView->frameView();
+    if (m_containerLayer)
         m_containerLayer->setSize(frameView->unscaledVisibleContentSize());
-    }
+    if (m_overflowControlsHostLayer)
+        m_overflowControlsHostLayer->setSize(frameView->unscaledVisibleContentSize(ScrollableArea::IncludeScrollbars));
 
 #if ENABLE(RUBBER_BANDING)
     if (m_contentShadowLayer) {
         m_contentShadowLayer->setPosition(m_rootContentLayer->position());
 
         FloatSize rootContentLayerSize = m_rootContentLayer->size();
         if (m_contentShadowLayer->size() != rootContentLayerSize) {
             m_contentShadowLayer->setSize(rootContentLayerSize);
             ScrollbarTheme::theme()->setUpContentShadowLayer(m_contentShadowLayer.get());
         }
@@ skipping 1210 matching lines @@
 
 Page* RenderLayerCompositor::page() const
 {
     if (Frame* frame = m_renderView->frameView()->frame())
         return frame->page();
 
     return 0;
 }
 
 } // namespace WebCore