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

chrome_frame/npapi_url_request.h

Index: chrome_frame/npapi_url_request.h
diff --git a/chrome_frame/npapi_url_request.h b/chrome_frame/npapi_url_request.h
index cce1b8835015f411c5baad05c31112f307e3ec54..eace09dd3945c51b8e578909facf17aefebc28c2 100644
--- a/chrome_frame/npapi_url_request.h
+++ b/chrome_frame/npapi_url_request.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.
 
@@ -56,7 +56,8 @@ class NPAPIUrlRequestManager : public PluginUrlRequestManager,
       const char* headers, int size, base::Time last_modified,
       const std::string& redirect_url, int redirect_status);
   virtual void OnReadComplete(int request_id, const std::string& data);
-  virtual void OnResponseEnd(int request_id, const URLRequestStatus& status);
+  virtual void OnResponseEnd(int request_id,
+                             const net::URLRequestStatus& status);
   virtual void OnCookiesRetrieved(bool success, const GURL& url,
       const std::string& cookie_string, int cookie_id);