Cleanup: Remove forward declarations in various directories.

chrome_frame/urlmon_url_request_private.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_FRAME_URLMON_URL_REQUEST_PRIVATE_H_
 #define CHROME_FRAME_URLMON_URL_REQUEST_PRIVATE_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
+
 #include <string>
 
 #include "base/callback_old.h"
 #include "base/threading/platform_thread.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request_status.h"
 #include "testing/gtest/include/gtest/gtest_prod.h"
 
-class RequestData;
-
 class UrlmonUrlRequest
   : public CComObjectRootEx<CComMultiThreadModel>,
     public PluginUrlRequest,
     public IServiceProviderImpl<UrlmonUrlRequest>,
     public IBindStatusCallback,
     public IHttpNegotiate,
     public IAuthenticate,
     public IHttpSecurity {
  public:
   virtual bool Start();
@@ skipping 225 matching lines @@
   // when this object is destroyed. Happens if we return
   // INET_E_TERMINATE_BIND from OnDataAvailable in the last data notification.
   bool cleanup_transaction_;
   // Copy of the request headers.
   std::string request_headers_;
 
   DISALLOW_COPY_AND_ASSIGN(UrlmonUrlRequest);
 };
 
 #endif  // CHROME_FRAME_URLMON_URL_REQUEST_PRIVATE_H_