Remove Backslash-as-JPY hack

Source/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
@@ skipping 130 matching lines @@
 #if ENABLE(ORIENTATION_EVENTS)
         // Orientation is the interface orientation in degrees. Some examples are:
         //  0 is straight up; -90 is when the device is rotated 90 clockwise;
         //  90 is when rotated counter clockwise.
         void sendOrientationChangeEvent(int orientation);
         int orientation() const { return m_orientation; }
 #endif
 
         String documentTypeString() const;
 
-        String displayStringModifiedByEncoding(const String&) const;
-
         PassOwnPtr<DragImage> nodeImage(Node*);
         PassOwnPtr<DragImage> dragImageForSelection();
 
         String selectedText() const;
         String selectedTextForClipboard() const;
 
         VisiblePosition visiblePositionForPoint(const IntPoint& framePoint);
         Document* documentAtPoint(const IntPoint& windowPoint);
         PassRefPtr<Range> rangeForPoint(const IntPoint& framePoint);
 
@@ skipping 117 matching lines @@
     }
 
     inline EventHandler* Frame::eventHandler() const
     {
         return m_eventHandler.get();
     }
 
 } // namespace WebCore
 
 #endif // Frame_h