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

chrome/browser/renderer_host/socket_stream_dispatcher_host.h

Index: chrome/browser/renderer_host/socket_stream_dispatcher_host.h
diff --git a/chrome/browser/renderer_host/socket_stream_dispatcher_host.h b/chrome/browser/renderer_host/socket_stream_dispatcher_host.h
index b57d7ce7e9cd1c21d261f65f5dcaa6d67063b85f..5c1b47cef12933e64293cea46dfe714cf892bfe0 100644
--- a/chrome/browser/renderer_host/socket_stream_dispatcher_host.h
+++ b/chrome/browser/renderer_host/socket_stream_dispatcher_host.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 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.
 
@@ -54,7 +54,7 @@ class SocketStreamDispatcherHost : public BrowserMessageFilter,
   void DeleteSocketStreamHost(int socket_id);
 
   // Returns the URLRequestContext.
-  URLRequestContext* GetURLRequestContext();
+  net::URLRequestContext* GetURLRequestContext();
 
   IDMap<SocketStreamHost> hosts_;
   scoped_refptr<ResourceMessageFilter::URLRequestContextOverride>