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

net/ocsp/nss_ocsp.h

-// 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.
 
 #ifndef NET_OCSP_NSS_OCSP_H_
 #define NET_OCSP_NSS_OCSP_H_
 #pragma once
 
+namespace net {
+
 class URLRequestContext;
 
-namespace net {
-
 // Sets the MessageLoop for OCSP to the current message loop.
 // This should be called before EnsureOCSPInit() if you want to
 // control the message loop for OCSP.
 void SetMessageLoopForOCSP();
 
 // Initializes OCSP handlers for NSS.  This must be called before any
 // certificate verification functions.  This function is thread-safe, and OCSP
 // handlers will only ever be initialized once.  ShutdownOCSP() must be called
 // on shutdown.
 void EnsureOCSPInit();
 
 // This should be called once on shutdown to stop issuing URLRequests for OCSP.
 void ShutdownOCSP();
 
 // Set URLRequestContext for OCSP handlers.
 void SetURLRequestContextForOCSP(URLRequestContext* request_context);
 URLRequestContext* GetURLRequestContextForOCSP();
 
 }  // namespace net
 
 #endif  // NET_OCSP_NSS_OCSP_H_