Cleanup: Remove unneeded forward declararations in net.

net/url_request/url_request.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 NET_URL_REQUEST_URL_REQUEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 36 matching lines @@
 class AppCacheRequestHandlerTest;
 class AppCacheURLRequestJobTest;
 }
 
 namespace base {
 class Time;
 }  // namespace base
 
 // Temporary layering violation to allow existing users of a deprecated
 // interface.
-namespace chrome_browser_net {
-class ConnectInterceptor;
-}
-
-// Temporary layering violation to allow existing users of a deprecated
-// interface.
 namespace fileapi {
 class FileSystemDirURLRequestJobTest;
 class FileSystemOperationWriteTest;
 class FileSystemURLRequestJobTest;
 class FileWriterDelegateTest;
 }
 
 // Temporary layering violation to allow existing users of a deprecated
 // interface.
 namespace policy {
@@ skipping 746 matching lines @@
   // the authentication challenge being handled by |NotifyAuthRequired|.
   AuthCredentials auth_credentials_;
   scoped_refptr<AuthChallengeInfo> auth_info_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_