Sync integration test for authentication errors

chrome/browser/sync/test/integration/sync_test.h

Index: chrome/browser/sync/test/integration/sync_test.h
diff --git a/chrome/browser/sync/test/integration/sync_test.h b/chrome/browser/sync/test/integration/sync_test.h
index 6b46f21cfdfa84ad8ff4f6336b6af9ff5fe23d2d..0ada65e4129a7879a207f60d207d1585d63b8022 100644
--- a/chrome/browser/sync/test/integration/sync_test.h
+++ b/chrome/browser/sync/test/integration/sync_test.h
@@ -172,6 +172,11 @@ class SyncTest : public InProcessBrowserTest {
   // this state until shut down.
   void TriggerTransientError();
 
+  // Triggers an auth error on the server, simulating the case when the gaia
+  // password is changed at another location. Note the server will stay in
+  // this state until shut down.
+  void TriggerAuthError();
+
   // Triggers a sync error on the server.
   void TriggerSyncError(const browser_sync::SyncProtocolError& error);