blink: Cleanup class forward declarations

third_party/WebKit/Source/core/frame/LocalFrame.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)
@@ skipping 47 matching lines @@
 class FrameConsole;
 class FrameSelection;
 class FrameView;
 class InputMethodController;
 class InspectorWebPerfAgent;
 class InstrumentingAgents;
 class InterfaceProvider;
 class InterfaceRegistry;
 class IntPoint;
 class IntSize;
-class JSONObject;
 class LayoutView;
 class LayoutViewItem;
 class LocalDOMWindow;
 class NavigationScheduler;
 class Node;
 class NodeTraversal;
 class Performance;
 template <typename Strategy>
 class PositionWithAffinityTemplate;
 class PluginData;
@@ skipping 299 matching lines @@
   explicit ScopedFrameBlamer(LocalFrame*);
   ~ScopedFrameBlamer();
 
  private:
   Member<LocalFrame> m_frame;
 };
 
 }  // namespace blink
 
 #endif  // LocalFrame_h