Remove more #includes from Frame.h

Source/WebKit/chromium/src/mac/WebSubstringUtil.mm

 /*
  * Copyright (C) 2005, 2007, 2008 Apple Inc. All rights reserved.
  * 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.
@@ skipping 21 matching lines @@
 #include "config.h"
 #include "WebSubstringUtil.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "ColorMac.h"
 #include "Document.h"
 #include "Element.h"
 #include "Font.h"
 #include "Frame.h"
+#include "FrameSelection.h"
 #include "FrameView.h"
 #include "HTMLElement.h"
 #include "Node.h"
 #include "Range.h"
 #include "RenderObject.h"
 #include "RenderStyle.h"
 #include "TextIterator.h"
 #include "WebFrameImpl.h"
 #include <public/WebRect.h>
 
@@ skipping 53 matching lines @@
                                            freeWhenDone:NO] autorelease];
         [string replaceCharactersInRange:NSMakeRange(position, 0)
                               withString:substring];
         [string setAttributes:attrs range:NSMakeRange(position, numCharacters)];
         position += numCharacters;
     }
     return [string autorelease];
 }
 
 } // namespace WebKit