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

chrome/browser/chromeos/login/enrollment/auto_enrollment_controller.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/enrollment/auto_enrollment_controller.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 159 matching lines @@
   safeguard_timer_.Stop();
 }
 
 void AutoEnrollmentController::Retry() {
   if (client_)
     client_->Retry();
   else
     Start();
 }
 
-scoped_ptr<AutoEnrollmentController::ProgressCallbackList::Subscription>
+std::unique_ptr<AutoEnrollmentController::ProgressCallbackList::Subscription>
 AutoEnrollmentController::RegisterProgressCallback(
     const ProgressCallbackList::CallbackType& callback) {
   return progress_callbacks_.Add(callback);
 }
 
 void AutoEnrollmentController::OnOwnershipStatusCheckDone(
     DeviceSettingsService::OwnershipStatus status) {
   switch (status) {
     case DeviceSettingsService::OWNERSHIP_NONE: {
       g_browser_process->platform_part()
@@ skipping 94 matching lines @@
     // open.
     LOG(ERROR) << "AutoEnrollmentClient didn't complete within time limit.";
     UpdateState(policy::AUTO_ENROLLMENT_STATE_CONNECTION_ERROR);
   }
 
   // Reset state.
   Cancel();
 }
 
 }  // namespace chromeos