Cleanup: Remove unneeded forward declarations from chrome/browser/ui/webui.

chrome/browser/ui/webui/sync_internals_ui.h

 // Copyright (c) 2011 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 CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_UI_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sync/js/js_event_handler.h"
 #include "chrome/browser/sync/js/js_reply_handler.h"
 #include "chrome/browser/ui/webui/chrome_web_ui.h"
 
-class ProfileSyncService;
-
 namespace browser_sync {
 class JsController;
 }  // namespace browser_sync
 
 // The implementation for the chrome://sync-internals page.
 class SyncInternalsUI : public ChromeWebUI,
                         public browser_sync::JsEventHandler,
                         public browser_sync::JsReplyHandler {
  public:
   explicit SyncInternalsUI(TabContents* contents);
@@ skipping 27 matching lines @@
       const browser_sync::JsArgList& args) OVERRIDE;
 
  private:
   base::WeakPtrFactory<SyncInternalsUI> weak_ptr_factory_;
   base::WeakPtr<browser_sync::JsController> js_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncInternalsUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SYNC_INTERNALS_UI_H_