Clean up forward declarations in Source/core/inspector

Source/core/inspector/InspectorInspectorAgent.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 20 matching lines @@
 #define InspectorInspectorAgent_h
 
 #include "core/InspectorFrontend.h"
 #include "core/inspector/InspectorBaseAgent.h"
 #include "wtf/HashMap.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
-class DOMWrapperWorld;
-class DocumentLoader;
 class LocalFrame;
 class InjectedScriptManager;
-class InstrumentingAgents;
 class JSONObject;
 class Page;
 
 typedef String ErrorString;
 
 class InspectorInspectorAgent final : public InspectorBaseAgent<InspectorInspectorAgent>, public InspectorBackendDispatcher::InspectorCommandHandler {
     WTF_MAKE_NONCOPYABLE(InspectorInspectorAgent);
 public:
     static PassOwnPtrWillBeRawPtr<InspectorInspectorAgent> create(Page* page, InjectedScriptManager* injectedScriptManager)
     {
@@ skipping 34 matching lines @@
 
     Vector<pair<long, String> > m_pendingEvaluateTestCommands;
     pair<RefPtr<TypeBuilder::Runtime::RemoteObject>, RefPtr<JSONObject> > m_pendingInspectData;
     typedef HashMap<String, String> InjectedScriptForOriginMap;
     InjectedScriptForOriginMap m_injectedScriptForOrigin;
 };
 
 } // namespace blink
 
 #endif // !defined(InspectorInspectorAgent_h)