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

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

Index: chrome/browser/sync/test/integration/single_client_search_engines_sync_test.cc
diff --git a/chrome/browser/sync/test/integration/single_client_search_engines_sync_test.cc b/chrome/browser/sync/test/integration/single_client_search_engines_sync_test.cc
index 3f0bb6ba2ebddd03d732a9c4a7d1cd78697f3c58..cb6506755305a25dd634ee6bcafb67342823c052 100644
--- a/chrome/browser/sync/test/integration/single_client_search_engines_sync_test.cc
+++ b/chrome/browser/sync/test/integration/single_client_search_engines_sync_test.cc
@@ -4,13 +4,11 @@
 
 #include "base/macros.h"
 #include "chrome/browser/sync/test/integration/search_engines_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 "components/browser_sync/profile_sync_service.h"
 #include "components/search_engines/template_url_service.h"
 
-using sync_integration_test_util::AwaitCommitActivityCompletion;
-
 class SingleClientSearchEnginesSyncTest : public SyncTest {
  public:
   SingleClientSearchEnginesSyncTest() : SyncTest(SINGLE_CLIENT) {}
@@ -23,9 +21,7 @@ class SingleClientSearchEnginesSyncTest : public SyncTest {
 IN_PROC_BROWSER_TEST_F(SingleClientSearchEnginesSyncTest, Sanity) {
   ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
   ASSERT_TRUE(search_engines_helper::ServiceMatchesVerifier(0));
-
   search_engines_helper::AddSearchEngine(0, 0);
-
-  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService(0)));
+  ASSERT_TRUE(UpdatedProgressMarkerChecker(GetSyncService(0)).Wait());
   ASSERT_TRUE(search_engines_helper::ServiceMatchesVerifier(0));
 }