First pass at removing dead vertical writing mode code.

sky/engine/core/editing/VisibleUnits.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 867 matching lines @@
     return p.isNotNull() && p == logicalEndOfLine(p);
 }
 
 static inline IntPoint absoluteLineDirectionPointToLocalPointInBlock(RootInlineBox* root, int lineDirectionPoint)
 {
     ASSERT(root);
     RenderBlockFlow& containingBlock = root->block();
     FloatPoint absoluteBlockPoint = containingBlock.localToAbsolute(FloatPoint());
     if (containingBlock.hasOverflowClip())
         absoluteBlockPoint -= containingBlock.scrolledContentOffset();
-
-    if (root->block().isHorizontalWritingMode())
-        return IntPoint(lineDirectionPoint - absoluteBlockPoint.x(), root->blockDirectionPointInLine());
-
-    return IntPoint(root->blockDirectionPointInLine(), lineDirectionPoint - absoluteBlockPoint.y());
+    return IntPoint(lineDirectionPoint - absoluteBlockPoint.x(), root->blockDirectionPointInLine());
 }
 
 VisiblePosition previousLinePosition(const VisiblePosition &visiblePosition, int lineDirectionPoint, EditableType editableType)
 {
     Position p = visiblePosition.deepEquivalent();
     Node* node = p.deprecatedNode();
 
     if (!node)
         return VisiblePosition();
 
@@ skipping 473 matching lines @@
     int caretOffset;
     position.position().getInlineBoxAndOffset(position.affinity(), inlineBox, caretOffset);
 
     if (inlineBox)
         renderer = &inlineBox->renderer();
 
     return renderer->localCaretRect(inlineBox, caretOffset);
 }
 
 }