extensions: Cleanup class/struct fwd declarations

extensions/renderer/dispatcher.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_RENDERER_DISPATCHER_H_
 #define EXTENSIONS_RENDERER_DISPATCHER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 19 matching lines @@
 #include "extensions/renderer/script_context_set.h"
 #include "extensions/renderer/user_script_set_manager.h"
 #include "extensions/renderer/v8_schema_registry.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "v8/include/v8.h"
 
 class ChromeRenderViewTest;
 class GURL;
 class ModuleSystem;
-class URLPattern;
 struct ExtensionMsg_DispatchEvent_Params;
 struct ExtensionMsg_ExternalConnectionInfo;
 struct ExtensionMsg_Loaded_Params;
 struct ExtensionMsg_TabConnectionInfo;
 struct ExtensionMsg_UpdatePermissions_Params;
 
 namespace blink {
-class WebFrame;
 class WebLocalFrame;
-class WebSecurityOrigin;
 }
 
 namespace base {
 class ListValue;
 }
 
-namespace content {
-class RenderThread;
-}
-
 namespace extensions {
 class ContentWatcher;
 class DispatcherDelegate;
-class FilteredEventRouter;
 class ExtensionBindingsSystem;
-class ManifestPermissionSet;
 class RequestSender;
 class ScriptContext;
 class ScriptInjectionManager;
 struct Message;
 
 // Dispatches extension control messages sent to the renderer and stores
 // renderer extension related state.
 class Dispatcher : public content::RenderThreadObserver,
                    public UserScriptSetManager::Observer {
  public:
@@ skipping 222 matching lines @@
   // if this renderer is a WebView guest render process. Otherwise, this will be
   // empty.
   std::string webview_partition_id_;
 
   DISALLOW_COPY_AND_ASSIGN(Dispatcher);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_DISPATCHER_H_