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

third_party/WebKit/Source/platform/geometry/LayoutRectOutsets.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 58 matching lines @@
     if (isFlippedLinesWritingMode(writingMode))
         std::swap(outsets.m_top, outsets.m_bottom);
     return outsets;
 }
 
 LayoutUnit LayoutRectOutsets::before(WritingMode writingMode) const
 {
     switch (writingMode) {
     case TopToBottomWritingMode:
         return m_top;
-    case BottomToTopWritingMode:
-        return m_bottom;
     case LeftToRightWritingMode:
         return m_left;
     case RightToLeftWritingMode:
         return m_right;
     }
     ASSERT_NOT_REACHED();
     return m_top;
 }
 
 LayoutUnit LayoutRectOutsets::after(WritingMode writingMode) const
 {
     switch (writingMode) {
     case TopToBottomWritingMode:
         return m_bottom;
-    case BottomToTopWritingMode:
-        return m_top;
     case LeftToRightWritingMode:
         return m_right;
     case RightToLeftWritingMode:
         return m_left;
     }
     ASSERT_NOT_REACHED();
     return m_bottom;
 }
 
 LayoutUnit LayoutRectOutsets::start(WritingMode writingMode, TextDirection direction) const
 {
     if (isHorizontalWritingMode(writingMode))
         return isLeftToRightDirection(direction) ? m_left : m_right;
     return isLeftToRightDirection(direction) ? m_top : m_bottom;
 }
 
 LayoutUnit LayoutRectOutsets::end(WritingMode writingMode, TextDirection direction) const
 {
     if (isHorizontalWritingMode(writingMode))
         return isLeftToRightDirection(direction) ? m_right : m_left;
     return isLeftToRightDirection(direction) ? m_bottom : m_top;
 }
 
 void LayoutRectOutsets::setBefore(WritingMode writingMode, LayoutUnit value)
 {
     switch (writingMode) {
     case TopToBottomWritingMode:
         m_top = value;
         break;
-    case BottomToTopWritingMode:
-        m_bottom = value;
-        break;
     case LeftToRightWritingMode:
         m_left = value;
         break;
     case RightToLeftWritingMode:
         m_right = value;
         break;
     default:
         ASSERT_NOT_REACHED();
         m_top = value;
     }
 }
 
 void LayoutRectOutsets::setAfter(WritingMode writingMode, LayoutUnit value)
 {
     switch (writingMode) {
     case TopToBottomWritingMode:
         m_bottom = value;
         break;
-    case BottomToTopWritingMode:
-        m_top = value;
-        break;
     case LeftToRightWritingMode:
         m_right = value;
         break;
     case RightToLeftWritingMode:
         m_left = value;
         break;
     default:
         ASSERT_NOT_REACHED();
         m_bottom = value;
     }
@@ skipping 23 matching lines @@
             m_left = value;
     } else {
         if (isLeftToRightDirection(direction))
             m_bottom = value;
         else
             m_top = value;
     }
 }
 
 } // namespace blink