Replace call sites to BorderValue functions to save the BorderValue construction cost

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

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 200 matching lines @@
 
       BorderValue prev_border = o.Style()->BorderTop();
       if (!box.BorderTop()) {
         ts << " none";
       } else {
         ts << " (" << box.BorderTop() << "px ";
         PrintBorderStyle(ts, o.Style()->BorderTopStyle());
         ts << o.ResolveColor(CSSPropertyBorderTopColor) << ")";
       }
 
-      if (o.Style()->BorderRight() != prev_border) {
+      if (!o.Style()->BorderRightEquals(prev_border)) {
         prev_border = o.Style()->BorderRight();
         if (!box.BorderRight()) {
           ts << " none";
         } else {
           ts << " (" << box.BorderRight() << "px ";
           PrintBorderStyle(ts, o.Style()->BorderRightStyle());
           ts << o.ResolveColor(CSSPropertyBorderRightColor) << ")";
         }
       }
 
-      if (o.Style()->BorderBottom() != prev_border) {
+      if (!o.Style()->BorderBottomEquals(prev_border)) {
         prev_border = box.Style()->BorderBottom();
         if (!box.BorderBottom()) {
           ts << " none";
         } else {
           ts << " (" << box.BorderBottom() << "px ";
           PrintBorderStyle(ts, o.Style()->BorderBottomStyle());
           ts << o.ResolveColor(CSSPropertyBorderBottomColor) << ")";
         }
       }
 
-      if (o.Style()->BorderLeft() != prev_border) {
+      if (!o.Style()->BorderLeftEquals(prev_border)) {
         prev_border = o.Style()->BorderLeft();
         if (!box.BorderLeft()) {
           ts << " none";
         } else {
           ts << " (" << box.BorderLeft() << "px ";
           PrintBorderStyle(ts, o.Style()->BorderLeftStyle());
           ts << o.ResolveColor(CSSPropertyBorderLeftColor) << ")";
         }
       }
 
@@ skipping 624 matching lines @@
   element->GetDocument().UpdateStyleAndLayout();
 
   LayoutObject* layout_object = element->GetLayoutObject();
   if (!layout_object || !layout_object->IsListItem())
     return String();
 
   return ToLayoutListItem(layout_object)->MarkerText();
 }
 
 }  // namespace blink