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

chrome/browser/sync/test/integration/preferences_helper.cc

 // 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.
 
 #include "chrome/browser/sync/test/integration/preferences_helper.h"
 
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/test/integration/multi_client_status_change_checker.h"
 #include "chrome/browser/sync/test/integration/profile_sync_service_harness.h"
@@ skipping 248 matching lines @@
   }
 
   StartBlockingWait();
 }
 
 const char* PrefMatchChecker::GetPath() const {
   return path_;
 }
 
 void PrefMatchChecker::RegisterPrefListener(PrefService* pref_service) {
-  scoped_ptr<PrefChangeRegistrar> registrar(new PrefChangeRegistrar());
+  std::unique_ptr<PrefChangeRegistrar> registrar(new PrefChangeRegistrar());
   registrar->Init(pref_service);
   registrar->Add(path_,
                  base::Bind(&PrefMatchChecker::CheckExitCondition,
                             base::Unretained(this)));
   pref_change_registrars_.push_back(registrar.release());
 }
 
 // Helper class used in the implementation of AwaitListPrefMatches.
 class ListPrefMatchChecker : public PrefMatchChecker {
  public:
@@ skipping 98 matching lines @@
   return !checker.TimedOut();
 }
 
 bool AwaitStringPrefMatches(const char* pref_name) {
   StringPrefMatchChecker checker(pref_name);
   checker.Wait();
   return !checker.TimedOut();
 }
 
 }  // namespace preferences_helper