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

third_party/WebKit/Source/core/style/ComputedStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 2117 matching lines @@
 }
 
 float ComputedStyle::BorderOverWidth() const {
   return IsHorizontalWritingMode() ? BorderTopWidth() : BorderRightWidth();
 }
 
 float ComputedStyle::BorderUnderWidth() const {
   return IsHorizontalWritingMode() ? BorderBottomWidth() : BorderLeftWidth();
 }
 
+EBorderStyle ComputedStyle::BorderBeforeStyle() const {
+  switch (GetWritingMode()) {
+    case WritingMode::kHorizontalTb:
+      return BorderTopStyle();
+    case WritingMode::kVerticalLr:
+      return BorderLeftStyle();
+    case WritingMode::kVerticalRl:
+      return BorderRightStyle();
+  }
+  NOTREACHED();
+  return BorderTopStyle();
+}
+
+EBorderStyle ComputedStyle::BorderAfterStyle() const {
+  switch (GetWritingMode()) {
+    case WritingMode::kHorizontalTb:
+      return BorderBottomStyle();
+    case WritingMode::kVerticalLr:
+      return BorderRightStyle();
+    case WritingMode::kVerticalRl:
+      return BorderLeftStyle();
+  }
+  NOTREACHED();
+  return BorderBottomStyle();
+}
+
+EBorderStyle ComputedStyle::BorderStartStyle() const {
+  if (IsHorizontalWritingMode())
+    return IsLeftToRightDirection() ? BorderLeftStyle() : BorderRightStyle();
+  return IsLeftToRightDirection() ? BorderTopStyle() : BorderBottomStyle();
+}
+
+EBorderStyle ComputedStyle::BorderEndStyle() const {
+  if (IsHorizontalWritingMode())
+    return IsLeftToRightDirection() ? BorderRightStyle() : BorderLeftStyle();
+  return IsLeftToRightDirection() ? BorderBottomStyle() : BorderTopStyle();
+}
+
 void ComputedStyle::SetMarginStart(const Length& margin) {
   if (IsHorizontalWritingMode()) {
     if (IsLeftToRightDirection())
       SetMarginLeft(margin);
     else
       SetMarginRight(margin);
   } else {
     if (IsLeftToRightDirection())
       SetMarginTop(margin);
     else
@@ skipping 196 matching lines @@
     if (value < 0)
       fvalue -= 0.5f;
     else
       fvalue += 0.5f;
   }
 
   return RoundForImpreciseConversion<int>(fvalue / zoom_factor);
 }
 
 }  // namespace blink