Disabling SyncSetupWebUITestAsync.RestoreSyncDataTypes on Mac: flaky

chrome/browser/ui/webui/sync_setup_browsertest.js

Index: chrome/browser/ui/webui/sync_setup_browsertest.js
diff --git a/chrome/browser/ui/webui/sync_setup_browsertest.js b/chrome/browser/ui/webui/sync_setup_browsertest.js
index b3654ce11f4569472307af3faed4417767c0c88d..578dfd0b417ad5fe55ab90f4f6ed0fc900501112 100644
--- a/chrome/browser/ui/webui/sync_setup_browsertest.js
+++ b/chrome/browser/ui/webui/sync_setup_browsertest.js
@@ -103,9 +103,9 @@ TEST_F('SyncSetupWebUITestAsync', 'DISABLED_VerifySignIn', function() {
   this.startSyncing();
 });
 
-// This test is flaky on Linux and Windows bots. See crbug.com/579666 and
-// crbug.com/638884
-GEN('#if defined(OS_LINUX) || defined(OS_WIN)');
+// This test is flaky on Linux, Windows and Mac bots. See crbug.com/579666,
+// crbug.com/638884 and crbug.com/718947.
+GEN('#if defined(OS_LINUX) || defined(OS_WIN) || defined(OS_MACOSX)');
 GEN('#define MAYBE_RestoreSyncDataTypes DISABLED_RestoreSyncDataTypes');
 GEN('#else');
 GEN('#define MAYBE_RestoreSyncDataTypes RestoreSyncDataTypes');