Move m_lineBoxes and its getters down to LayoutBlockFlow.

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
  * License as published by the Free Software Foundation; either
@@ skipping 61 matching lines @@
 
 using namespace WTF;
 using namespace Unicode;
 
 namespace blink {
 
 using namespace HTMLNames;
 
 struct SameSizeAsLayoutBlock : public LayoutBox {
     LayoutObjectChildList children;
-    LineBoxList lineBoxes;
     uint32_t bitfields;
 };
 
 static_assert(sizeof(LayoutBlock) == sizeof(SameSizeAsLayoutBlock), "LayoutBlock should stay small");
 
 // This map keeps track of the positioned objects associated with a containing
 // block.
 //
 // This map is populated during layout. It is kept across layouts to handle
 // that we skip unchanged sub-trees during layout, in such a way that we are
@@ skipping 1828 matching lines @@
         for (TrackedLayoutBoxListHashSet::const_iterator it = positionedDescendantSet->begin(); it != end; ++it) {
             LayoutBox* currBox = *it;
             ASSERT(!currBox->needsLayout());
         }
     }
 }
 
 #endif
 
 } // namespace blink