net: Add namespace net to the remaining files under url_request directory.

chrome/browser/plugin_service.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
 // This class responds to requests from renderers for the list of plugins, and
 // also a proxy object for plugin instances.
 
 #ifndef CHROME_BROWSER_PLUGIN_SERVICE_H_
 #define CHROME_BROWSER_PLUGIN_SERVICE_H_
 #pragma once
 
@@ skipping 21 matching lines @@
 }
 #endif
 
 namespace IPC {
 class Message;
 }
 
 class MessageLoop;
 class Profile;
 class ResourceDispatcherHost;
+
+namespace net {
 class URLRequestContext;
-
+}  // namespace net
 
 namespace webkit {
 namespace npapi {
 struct WebPluginInfo;
 }
 }
 
 // This must be created on the main thread but it's only called on the IO/file
 // thread.
 class PluginService
@@ skipping 125 matching lines @@
 
   // Set to true if chrome plugins are enabled. Defaults to true.
   static bool enable_chrome_plugins_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginService);
 };
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(PluginService);
 
 #endif  // CHROME_BROWSER_PLUGIN_SERVICE_H_