Move previous border box size out of global map into LayoutBox::m_previousSize

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
@@ skipping 67 matching lines @@
 static OverrideSizeMap* gExtraInlineOffsetMap = nullptr;
 static OverrideSizeMap* gExtraBlockOffsetMap = nullptr;
 
 // Size of border belt for autoscroll. When mouse pointer in border belt,
 // autoscroll is started.
 static const int autoscrollBeltSize = 20;
 static const unsigned backgroundObscurationTestMaxDepth = 4;
 
 struct SameSizeAsLayoutBox : public LayoutBoxModelObject {
   LayoutRect frameRect;
+  LayoutSize previousSize;
   LayoutUnit intrinsicContentLogicalHeight;
   LayoutRectOutsets marginBoxOutsets;
   LayoutUnit preferredLogicalWidth[2];
   void* pointers[3];
 };
 
 static_assert(sizeof(LayoutBox) == sizeof(SameSizeAsLayoutBox),
               "LayoutBox should stay small");
 
 LayoutBox::LayoutBox(ContainerNode* node)
@@ skipping 5616 matching lines @@
     block->adjustChildDebugRect(rect);
 
   return rect;
 }
 
 bool LayoutBox::shouldClipOverflow() const {
   return hasOverflowClip() || styleRef().containsPaint() || hasControlClip();
 }
 
 }  // namespace blink