Change caret to show language direction

Source/core/editing/Caret.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 46 matching lines @@
     bool shouldUpdateCaretRect() const { return m_caretRectNeedsUpdate; }
     void setCaretRectNeedsUpdate() { m_caretRectNeedsUpdate = true; }
 
     void setCaretVisibility(CaretVisibility visibility) { m_caretVisibility = visibility; }
     bool caretIsVisible() const { return m_caretVisibility == Visible; }
     CaretVisibility caretVisibility() const { return m_caretVisibility; }
 
 protected:
     static RenderObject* caretRenderer(Node*);
     static void repaintCaretForLocalRect(Node*, const LayoutRect&);
+    static void updateDirectionPointer(const RenderObject*, LayoutRect&);
 
 private:
     LayoutRect m_caretLocalRect; // caret rect in coords local to the renderer responsible for painting the caret
     bool m_caretRectNeedsUpdate; // true if m_caretRect (and m_absCaretBounds in FrameSelection) need to be calculated
     CaretVisibility m_caretVisibility;
 };
 
 class DragCaretController : private CaretBase {
     WTF_MAKE_NONCOPYABLE(DragCaretController);
     WTF_MAKE_FAST_ALLOCATED;
@@ skipping 16 matching lines @@
 private:
     DragCaretController();
 
     VisiblePosition m_position;
 };
 
 } // namespace WebCore
 
 
 #endif // Caret_h