Clean up forward declarations in WebKit/Source

Source/modules/geolocation/Geolocation.h

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All Rights Reserved.
  * Copyright 2010, The Android Open Source Project
  *
  * 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
@@ skipping 23 matching lines @@
 #include "modules/geolocation/Geoposition.h"
 #include "modules/geolocation/PositionCallback.h"
 #include "modules/geolocation/PositionError.h"
 #include "modules/geolocation/PositionErrorCallback.h"
 #include "modules/geolocation/PositionOptions.h"
 #include "platform/Timer.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
-class Dictionary;
 class Document;
 class LocalFrame;
 class GeolocationError;
 class ExecutionContext;
 
 class Geolocation final
     : public GarbageCollectedFinalized<Geolocation>
     , public ScriptWrappable
     , public ActiveDOMObject {
     DEFINE_WRAPPERTYPEINFO();
@@ skipping 128 matching lines @@
     };
 
     Permission m_geolocationPermission;
 
     GeoNotifierSet m_requestsAwaitingCachedPosition;
 };
 
 } // namespace blink
 
 #endif // Geolocation_h