Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/login/signin/token_handle_fetcher.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/chromeos/login/signin/token_handle_fetcher.h"
 
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/chromeos/login/signin/token_handle_util.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
@@ skipping 115 matching lines @@
 
 void TokenHandleFetcher::OnOAuthError() {
   callback_.Run(account_id_, false);
 }
 
 void TokenHandleFetcher::OnNetworkError(int response_code) {
   callback_.Run(account_id_, false);
 }
 
 void TokenHandleFetcher::OnGetTokenInfoResponse(
-    scoped_ptr<base::DictionaryValue> token_info) {
+    std::unique_ptr<base::DictionaryValue> token_info) {
   bool success = false;
   if (!token_info->HasKey("error")) {
     std::string handle;
     if (token_info->GetString("token_handle", &handle)) {
       success = true;
       token_handle_util_->StoreTokenHandle(account_id_, handle);
     }
   }
   const base::TimeDelta duration =
       base::TimeTicks::Now() - tokeninfo_response_start_time_;
   UMA_HISTOGRAM_TIMES("Login.TokenObtainResponseTime", duration);
   callback_.Run(account_id_, success);
 }
 
 void TokenHandleFetcher::OnProfileDestroyed() {
   callback_.Run(account_id_, false);
 }