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

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

Index: chrome/browser/sync/test/integration/single_client_arc_package_sync_test.cc
diff --git a/chrome/browser/sync/test/integration/single_client_arc_package_sync_test.cc b/chrome/browser/sync/test/integration/single_client_arc_package_sync_test.cc
index 215e7337434f712b7caf38208465f35d6ddf6e65..7f948b2d5c8292ec9b60ed8dbeb7cf0fc7017db5 100644
--- a/chrome/browser/sync/test/integration/single_client_arc_package_sync_test.cc
+++ b/chrome/browser/sync/test/integration/single_client_arc_package_sync_test.cc
@@ -4,12 +4,10 @@
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/test/integration/sync_arc_package_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/arc/arc_package_syncable_service.h"
 
-using sync_integration_test_util::AwaitCommitActivityCompletion;
-
 namespace arc {
 
 namespace {
@@ -68,7 +66,7 @@ IN_PROC_BROWSER_TEST_F(SingleClientArcPackageSyncTest,
     sync_helper()->InstallPackageWithIndex(verifier(), i);
   }
 
-  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService(0)));
+  ASSERT_TRUE(UpdatedProgressMarkerChecker(GetSyncService(0)).Wait());
   ASSERT_TRUE(AllProfilesHaveSameArcPackageDetails());
 }