First pass at removing dead vertical writing mode code.

sky/engine/core/editing/VisiblePosition.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Portions Copyright (c) 2011 Motorola Mobility, 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
@@ skipping 652 matching lines @@
     if (localRect.isEmpty() || !renderer)
         return 0;
 
     // This ignores transforms on purpose, for now. Vertical navigation is done
     // without consulting transforms, so that 'up' in transformed text is 'up'
     // relative to the text, not absolute 'up'.
     FloatPoint caretPoint = renderer->localToAbsolute(localRect.location());
     RenderObject* containingBlock = renderer->containingBlock();
     if (!containingBlock)
         containingBlock = renderer; // Just use ourselves to determine the writing mode if we have no containing block.
-    return containingBlock->isHorizontalWritingMode() ? caretPoint.x() : caretPoint.y();
+    return caretPoint.x();
 }
 
 #ifndef NDEBUG
 
 void VisiblePosition::debugPosition(const char* msg) const
 {
     if (isNull())
         fprintf(stderr, "Position [%s]: null\n", msg);
     else {
         fprintf(stderr, "Position [%s]: %s, ", msg, m_deepPosition.deprecatedNode()->nodeName().utf8().data());
@@ skipping 97 matching lines @@
     if (vpos)
         vpos->showTreeForThis();
 }
 
 void showTree(const blink::VisiblePosition& vpos)
 {
     vpos.showTreeForThis();
 }
 
 #endif