Support for multiple block fragments in getClientRects().

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. 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 608 matching lines @@
         parentBox->scrollRectToVisible(newRect, alignX, alignY, scrollType, makeVisibleInVisualViewport);
 }
 
 void LayoutBox::absoluteRects(Vector<IntRect>& rects, const LayoutPoint& accumulatedOffset) const
 {
     rects.append(pixelSnappedIntRect(accumulatedOffset, size()));
 }
 
 void LayoutBox::absoluteQuads(Vector<FloatQuad>& quads) const
 {
+    if (LayoutFlowThread* flowThread = flowThreadContainingBlock()) {
+        flowThread->absoluteQuadsForDescendant(*this, quads);
+        return;
+    }
     quads.append(localToAbsoluteQuad(FloatRect(0, 0, m_frameRect.width().toFloat(), m_frameRect.height().toFloat())));
 }
 
 FloatRect LayoutBox::localBoundingBoxRectForAccessibility() const
 {
     return FloatRect(0, 0, m_frameRect.width().toFloat(), m_frameRect.height().toFloat());
 }
 
 void LayoutBox::updateLayerTransformAfterLayout()
 {
@@ skipping 4236 matching lines @@
     LayoutRect rect = frameRect();
 
     LayoutBlock* block = containingBlock();
     if (block)
         block->adjustChildDebugRect(rect);
 
     return rect;
 }
 
 } // namespace blink