Remove the "horizontal-bt" value from -webkit-writing-mode

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 1515 matching lines @@
 
     // Take the alpha from the unvisited color, but get the RGB values from the visited color.
     return Color(visitedColor.red(), visitedColor.green(), visitedColor.blue(), unvisitedColor.alpha());
 }
 
 const BorderValue& ComputedStyle::borderBefore() const
 {
     switch (writingMode()) {
     case TopToBottomWritingMode:
         return borderTop();
-    case BottomToTopWritingMode:
-        return borderBottom();
     case LeftToRightWritingMode:
         return borderLeft();
     case RightToLeftWritingMode:
         return borderRight();
     }
     ASSERT_NOT_REACHED();
     return borderTop();
 }
 
 const BorderValue& ComputedStyle::borderAfter() const
 {
     switch (writingMode()) {
     case TopToBottomWritingMode:
         return borderBottom();
-    case BottomToTopWritingMode:
-        return borderTop();
     case LeftToRightWritingMode:
         return borderRight();
     case RightToLeftWritingMode:
         return borderLeft();
     }
     ASSERT_NOT_REACHED();
     return borderBottom();
 }
 
 const BorderValue& ComputedStyle::borderStart() const
 {
     if (isHorizontalWritingMode())
         return isLeftToRightDirection() ? borderLeft() : borderRight();
     return isLeftToRightDirection() ? borderTop() : borderBottom();
 }
 
 const BorderValue& ComputedStyle::borderEnd() const
 {
     if (isHorizontalWritingMode())
         return isLeftToRightDirection() ? borderRight() : borderLeft();
     return isLeftToRightDirection() ? borderBottom() : borderTop();
 }
 
 int ComputedStyle::borderBeforeWidth() const
 {
     switch (writingMode()) {
     case TopToBottomWritingMode:
         return borderTopWidth();
-    case BottomToTopWritingMode:
-        return borderBottomWidth();
     case LeftToRightWritingMode:
         return borderLeftWidth();
     case RightToLeftWritingMode:
         return borderRightWidth();
     }
     ASSERT_NOT_REACHED();
     return borderTopWidth();
 }
 
 int ComputedStyle::borderAfterWidth() const
 {
     switch (writingMode()) {
     case TopToBottomWritingMode:
         return borderBottomWidth();
-    case BottomToTopWritingMode:
-        return borderTopWidth();
     case LeftToRightWritingMode:
         return borderRightWidth();
     case RightToLeftWritingMode:
         return borderLeftWidth();
     }
     ASSERT_NOT_REACHED();
     return borderBottomWidth();
 }
 
 int ComputedStyle::borderStartWidth() const
@@ skipping 189 matching lines @@
 }
 
 void ComputedStyle::copyChildDependentFlagsFrom(const ComputedStyle& other)
 {
     setEmptyState(other.emptyState());
     if (other.hasExplicitlyInheritedProperties())
         setHasExplicitlyInheritedProperties();
 }
 
 } // namespace blink