Clean up coding style

net/url_request/url_request_job_factory_impl.h

 // 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_URL_REQUEST_URL_REQUEST_JOB_FACTORY_IMPL_H_
 #define NET_URL_REQUEST_URL_REQUEST_JOB_FACTORY_IMPL_H_
 
 #include <map>
-#include <vector>
+#include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "net/base/net_export.h"
 #include "net/url_request/url_request_job_factory.h"
 
 namespace net {
 
 class NET_EXPORT URLRequestJobFactoryImpl : public URLRequestJobFactory {
  public:
@@ skipping 19 matching lines @@
   typedef std::map<std::string, ProtocolHandler*> ProtocolHandlerMap;
 
   ProtocolHandlerMap protocol_handler_map_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestJobFactoryImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_JOB_FACTORY_IMPL_H_