Call scrollbarsChanged in PLSA::updateAfterStyleChange.

third_party/WebKit/Source/core/layout/LayoutBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1351 matching lines @@
 
 int LayoutBlock::columnGap() const {
   if (style()->hasNormalColumnGap()) {
     // "1em" is recommended as the normal gap setting. Matches <p> margins.
     return style()->getFontDescription().computedPixelSize();
   }
   return static_cast<int>(style()->columnGap());
 }
 
 void LayoutBlock::scrollbarsChanged(bool horizontalScrollbarChanged,
-                                    bool verticalScrollbarChanged) {
+                                    bool verticalScrollbarChanged,
+                                    ScrollbarChangeContext context) {
   m_widthAvailableToChildrenChanged |= verticalScrollbarChanged;
   m_heightAvailableToChildrenChanged |= horizontalScrollbarChanged;
 }
 
 void LayoutBlock::computeIntrinsicLogicalWidths(
     LayoutUnit& minLogicalWidth,
     LayoutUnit& maxLogicalWidth) const {
   // Size-contained elements don't consider their contents for preferred sizing.
   if (style()->containsSize())
     return;
@@ skipping 824 matching lines @@
   }
 
   return availableHeight;
 }
 
 bool LayoutBlock::hasDefiniteLogicalHeight() const {
   return availableLogicalHeightForPercentageComputation() != LayoutUnit(-1);
 }
 
 }  // namespace blink