Implement the gaia captcha state and unlock capability in the sync setup wiza...

chrome/test/live_sync/profile_sync_service_test_harness.cc

 // Copyright (c) 2006-2008 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.
 
 #include "base/message_loop.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/test/live_sync/profile_sync_service_test_harness.h"
@@ skipping 227 matching lines @@
 }
 
 bool ProfileSyncServiceTestHarness::WaitForServiceInit() {
   // Wait for the initial (auth needed) callback.
   EXPECT_EQ(wait_state_, WAITING_FOR_INITIAL_CALLBACK);
   if (!AwaitStatusChangeWithTimeout(30, "Waiting for authwatcher calback.")) {
     return false;
   }
 
   // Wait for the OnBackendInitialized callback.
-  service_->backend()->Authenticate(username_, password_);
+  service_->backend()->Authenticate(username_, password_, std::string());
   EXPECT_EQ(wait_state_, WAITING_FOR_READY_TO_PROCESS_CHANGES);
   if (!AwaitStatusChangeWithTimeout(30, "Waiting on backend initialization.")) {
     return false;
   }
   return service_->sync_initialized();
 }