Move border-*-width out of BorderValue and store on SurroundData in ComputedStyle instead

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 320 matching lines @@
     if (flow_thread && flow_thread != this)
       flow_thread->FlowThreadDescendantStyleDidChange(this, diff, *old_style);
 
     UpdateScrollSnapMappingAfterStyleChange(&new_style, old_style);
 
     if (RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled() &&
         ShouldClipOverflow()) {
       // The overflow clip paint property depends on border sizes through
       // overflowClipRect(), and border radii, so we update properties on
       // border size or radii change.
-      if (!old_style->Border().SizeEquals(new_style.Border()) ||
+      if (!old_style->BorderSizeEquals(new_style) ||
           !old_style->RadiiEqual(new_style))
         SetNeedsPaintPropertyUpdate();
     }
   }
 
   if (diff.TransformChanged()) {
     if (ScrollingCoordinator* scrolling_coordinator =
             GetDocument().GetFrame()->GetPage()->GetScrollingCoordinator())
       scrolling_coordinator->NotifyTransformChanged(*this);
   }
@@ skipping 5552 matching lines @@
 void LayoutBox::MutableForPainting::
     SavePreviousContentBoxSizeAndLayoutOverflowRect() {
   auto& rare_data = GetLayoutBox().EnsureRareData();
   rare_data.has_previous_content_box_size_and_layout_overflow_rect_ = true;
   rare_data.previous_content_box_size_ = GetLayoutBox().ContentBoxRect().Size();
   rare_data.previous_layout_overflow_rect_ =
       GetLayoutBox().LayoutOverflowRect();
 }
 
 }  // namespace blink