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

net/url_request/url_request_status.h

Index: net/url_request/url_request_status.h
diff --git a/net/url_request/url_request_status.h b/net/url_request/url_request_status.h
index ca376fbb1d68b048bb4ee3790aeabaccc622bdfd..332e7e90fe4d13f2ba4e917bf8b79d9480e4a5bb 100644
--- a/net/url_request/url_request_status.h
+++ b/net/url_request/url_request_status.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 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.
 //
@@ -9,6 +9,8 @@
 #define NET_URL_REQUEST_URL_REQUEST_STATUS_H_
 #pragma once
 
+namespace net {
+
 // Represents the result of a URL request. It encodes errors and various
 // types of success.
 class URLRequestStatus {
@@ -64,4 +66,9 @@ class URLRequestStatus {
   int os_error_;
 };
 
+}  // namespace net
+
+// TODO(tfarina): Fix the callers and remove this!
+typedef net::URLRequestStatus URLRequestStatus;
+
 #endif  // NET_URL_REQUEST_URL_REQUEST_STATUS_H_