Convert //remoting to use std::unique_ptr

remoting/host/dns_blackhole_checker.h

 // Copyright (c) 2012 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 REMOTING_HOST_DNS_BLACKHOLE_CHECKER_H_
 #define REMOTING_HOST_DNS_BLACKHOLE_CHECKER_H_
 
 #include "net/url_request/url_fetcher_delegate.h"
 
 #include "base/callback.h"
@@ skipping 23 matching lines @@
   // Initiates a check the verify that the host talkgadget has not been "DNS
   // blackholed" to prevent connections. If this is called again before the
   // callback has been called, then the second call is ignored.
   void CheckForDnsBlackhole(const base::Callback<void(bool)>& callback);
 
  private:
   // URL request context getter to use to create the URL fetcher.
   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
 
   // URL fetcher used to verify access to the host talkgadget.
-  scoped_ptr<net::URLFetcher> url_fetcher_;
+  std::unique_ptr<net::URLFetcher> url_fetcher_;
 
   // The string pre-pended to '.talkgadget.google.com' to create the full
   // talkgadget domain name for the host.
   std::string talkgadget_prefix_;
 
   // Called with the results of the connection check.
   base::Callback<void(bool)> callback_;
 
   DISALLOW_COPY_AND_ASSIGN(DnsBlackholeChecker);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DNS_BLACKHOLE_CHECKER_H_