Add support for flattening in GeometryMapper.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc.
  *               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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 1193 matching lines @@
     TransformState& transformState,
     VisualRectFlags visualRectFlags) const {
   if (ancestor == this)
     return true;
 
   LayoutObject* container = this->container();
   ASSERT(container == parent());
   if (!container)
     return true;
 
-  bool preserve3D = container->style()->preserves3D() || style()->preserves3D();
+  bool preserve3D = container->style()->preserves3D();
 
   TransformState::TransformAccumulation accumulation =
       preserve3D ? TransformState::AccumulateTransform
                  : TransformState::FlattenTransform;
 
   if (style()->hasInFlowPosition() && layer()) {
     // Apply the in-flow position offset when invalidating a rectangle. The
     // layer is translated, but the layout box isn't, so we need to do this to
     // get the right dirty rect. Since this is called from LayoutObject::
     // setStyle, the relative position flag on the LayoutObject has been
@@ skipping 309 matching lines @@
     paintInvalidator.invalidateDisplayItemClient(*box, invalidationReason);
 }
 
 // TODO(lunalu): Not to just dump 0, 0 as the x and y here
 LayoutRect LayoutInline::debugRect() const {
   IntRect linesBox = enclosingIntRect(linesBoundingBox());
   return LayoutRect(IntRect(0, 0, linesBox.width(), linesBox.height()));
 }
 
 }  // namespace blink