Refactor the wait code in ProfileSyncServiceTestHarness.

chrome/test/live_sync/profile_sync_service_test_harness.h

Index: chrome/test/live_sync/profile_sync_service_test_harness.h
diff --git a/chrome/test/live_sync/profile_sync_service_test_harness.h b/chrome/test/live_sync/profile_sync_service_test_harness.h
index 7ebf47793bbb94c67a8855cb41ca5fa0390c62db..bcce77f1af9ad5edee4a42d52c3b67a7c862e094 100644
--- a/chrome/test/live_sync/profile_sync_service_test_harness.h
+++ b/chrome/test/live_sync/profile_sync_service_test_harness.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -54,11 +54,16 @@ class ProfileSyncServiceTestHarness : public ProfileSyncServiceObserver {
   friend class StateChangeTimeoutEvent;
 
   enum WaitState {
-    WAITING_FOR_INITIAL_CALLBACK = 0,
-    WAITING_FOR_READY_TO_PROCESS_CHANGES,
+    // The sync client awaits the OnAuthError() callback.
+    WAITING_FOR_ON_AUTH_ERROR = 0,
+    // The sync client is waiting for notifications_enabled to become true.
+    WAITING_FOR_NOTIFICATIONS_ENABLED,
+    // The sync client is waiting for an ongoing sync cycle to complete.
     WAITING_FOR_SYNC_TO_FINISH,
+    // The sync client anticipates incoming updates leading to a new sync cycle.
     WAITING_FOR_UPDATES,
-    WAITING_FOR_NOTHING,
+    // The sync client is fully synced and there are no pending updates.
+    FULLY_SYNCED,
     NUMBER_OF_STATES
   };