[Sync] Refactoring of sync integration test checkers to remove boilerplate await methods.

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

 // Copyright 2013 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 <stddef.h>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "chrome/browser/sync/test/integration/apps_helper.h"
 #include "chrome/browser/sync/test/integration/sync_app_list_helper.h"
-#include "chrome/browser/sync/test/integration/sync_integration_test_util.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
+#include "chrome/browser/sync/test/integration/updated_progress_marker_checker.h"
 #include "chrome/browser/ui/app_list/app_list_syncable_service.h"
 #include "chrome/browser/ui/app_list/app_list_syncable_service_factory.h"
 #include "components/browser_sync/profile_sync_service.h"
 #include "ui/app_list/app_list_switches.h"
 
-using sync_integration_test_util::AwaitCommitActivityCompletion;
-
 namespace {
 
 const size_t kNumDefaultApps = 2;
 
 bool AllProfilesHaveSameAppList() {
   return SyncAppListHelper::GetInstance()->AllProfilesHaveSameAppList();
 }
 
 }  // namespace
 
@@ skipping 35 matching lines @@
   const size_t kNumApps = 5;
   for (int i = 0; i < static_cast<int>(kNumApps); ++i) {
     apps_helper::InstallApp(GetProfile(0), i);
     apps_helper::InstallApp(verifier(), i);
   }
 
   app_list::AppListSyncableService* service =
       app_list::AppListSyncableServiceFactory::GetForProfile(verifier());
   ASSERT_EQ(kNumApps + kNumDefaultApps, service->GetNumSyncItemsForTest());
 
-  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService(0)));
+  ASSERT_TRUE(UpdatedProgressMarkerChecker(GetSyncService(0)).Wait());
   ASSERT_TRUE(AllProfilesHaveSameAppList());
 }