Cleanup TextDirection

third_party/WebKit/Source/platform/LengthBox.cpp

 /*
  * Copyright (c) 2012, Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 65 matching lines @@
   return bottom;
 }
 
 const Length& LengthBox::Start(WritingMode writing_mode,
                                TextDirection direction,
                                const Length& top,
                                const Length& left,
                                const Length& right,
                                const Length& bottom) {
   if (IsHorizontalWritingMode(writing_mode))
-    return IsLeftToRightDirection(direction) ? left : right;
-  return IsLeftToRightDirection(direction) ? top : bottom;
+    return IsLtr(direction) ? left : right;
+  return IsLtr(direction) ? top : bottom;
 }
 
 const Length& LengthBox::End(WritingMode writing_mode,
                              TextDirection direction,
                              const Length& top,
                              const Length& left,
                              const Length& right,
                              const Length& bottom) {
   if (IsHorizontalWritingMode(writing_mode))
-    return IsLeftToRightDirection(direction) ? right : left;
-  return IsLeftToRightDirection(direction) ? bottom : top;
+    return IsLtr(direction) ? right : left;
+  return IsLtr(direction) ? bottom : top;
 }
 
 const Length& LengthBox::Over(WritingMode writing_mode,
                               const Length& top,
                               const Length& right) {
   return IsHorizontalWritingMode(writing_mode) ? top : right;
 }
 
 const Length& LengthBox::Under(WritingMode writing_mode,
                                const Length& bottom,
                                const Length& left) {
   return IsHorizontalWritingMode(writing_mode) ? bottom : left;
 }
 
 }  // namespace blink