Fix selection handles in vertical writing modes.

third_party/WebKit/Source/core/editing/RenderedPosition.h

 /*
  * Copyright (C) 2011 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 54 matching lines @@
     bool atRightBoundaryOfBidiRun() const { return atRightBoundaryOfBidiRun(IgnoreBidiLevel, 0); }
     // The following two functions return true only if the current position is at the end of the bidi run
     // of the specified bidi embedding level.
     bool atLeftBoundaryOfBidiRun(unsigned char bidiLevelOfRun) const { return atLeftBoundaryOfBidiRun(MatchBidiLevel, bidiLevelOfRun); }
     bool atRightBoundaryOfBidiRun(unsigned char bidiLevelOfRun) const { return atRightBoundaryOfBidiRun(MatchBidiLevel, bidiLevelOfRun); }
 
     Position positionAtLeftBoundaryOfBiDiRun() const;
     Position positionAtRightBoundaryOfBiDiRun() const;
 
     IntRect absoluteRect(LayoutUnit* extraWidthToEndOfLine = 0) const;
-    void positionInGraphicsLayerBacking(CompositedSelectionBound&) const;
+
+    void positionInGraphicsLayerBacking(CompositedSelectionBound&, bool selectionStart) const;
 
 private:
     bool operator==(const RenderedPosition&) const { return false; }
     explicit RenderedPosition(LayoutObject*, InlineBox*, int offset);
 
     InlineBox* prevLeafChild() const;
     InlineBox* nextLeafChild() const;
     bool atLeftmostOffsetInBox() const { return m_inlineBox && m_offset == m_inlineBox->caretLeftmostOffset(); }
     bool atRightmostOffsetInBox() const { return m_inlineBox && m_offset == m_inlineBox->caretRightmostOffset(); }
     bool atLeftBoundaryOfBidiRun(ShouldMatchBidiLevel, unsigned char bidiLevelOfRun) const;
@@ skipping 26 matching lines @@
     , m_prevLeafChild(uncachedInlineBox())
     , m_nextLeafChild(uncachedInlineBox())
 {
 }
 
 CORE_EXPORT bool layoutObjectContainsPosition(LayoutObject*, const Position&);
 
 };
 
 #endif // RenderedPosition_h