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

chrome/browser/ui/webui/chrome_url_data_manager_backend.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_CHROME_URL_DATA_MANAGER_BACKEND_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROME_URL_DATA_MANAGER_BACKEND_H_
 #pragma once
 
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/task.h"
-#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
-#include "net/url_request/url_request_job_factory.h"
-
 #include <map>
 #include <string>
 #include <vector>
 
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/task.h"
+#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
+#include "net/url_request/url_request_job_factory.h"
+
 class ChromeAppCacheService;
 class ChromeURLDataManagerBackend;
-class FilePath;
 class GURL;
+class RefCountedMemory;
 class URLRequestChromeJob;
 
 namespace net {
 class URLRequest;
 class URLRequestJob;
 }
 namespace webkit_blob {
 class BlobStorageController;
 }
 
@@ skipping 53 matching lines @@
   // The ID we'll use for the next request we receive.
   RequestID next_request_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeURLDataManagerBackend);
 };
 
 net::URLRequestJobFactory::ProtocolHandler*
 CreateDevToolsProtocolHandler(ChromeURLDataManagerBackend* backend);
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROME_URL_DATA_MANAGER_BACKEND_H_