Convert //extensions/browser from scoped_ptr to std::unique_ptr

extensions/browser/extension_protocols.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_EXTENSION_PROTOCOLS_H_
 #define EXTENSIONS_BROWSER_EXTENSION_PROTOCOLS_H_
 
+#include <memory>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "net/url_request/url_request_job_factory.h"
 
 namespace base {
 class Time;
 }
 
 namespace net {
 class HttpResponseHeaders;
 }
 
 namespace extensions {
 
 class InfoMap;
 
 // Builds HTTP headers for an extension request. Hashes the time to avoid
 // exposing the exact user installation time of the extension.
 net::HttpResponseHeaders* BuildHttpHeaders(
     const std::string& content_security_policy,
     bool send_cors_header,
     const base::Time& last_modified_time);
 
 // Creates the handlers for the chrome-extension:// scheme. Pass true for
 // |is_incognito| only for incognito profiles and not for Chrome OS guest mode
 // profiles.
-scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
+std::unique_ptr<net::URLRequestJobFactory::ProtocolHandler>
 CreateExtensionProtocolHandler(bool is_incognito, InfoMap* extension_info_map);
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_PROTOCOLS_H_