[Sync] Make BackendMigrator not wait for full sync cycles

chrome/browser/sync/glue/sync_backend_host_unittest.cc

 // Copyright (c) 2011 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 "chrome/browser/sync/glue/sync_backend_host.h"
 
 #include <cstddef>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 66 matching lines @@
 
 TEST_F(SyncBackendHostTest, InitShutdown) {
   std::string k_mock_url = "http://www.example.com";
   FakeURLFetcherFactory test_factory_;
   test_factory_.SetFakeResponse(k_mock_url + "/time?command=get_time", "",
       false);
 
   TestingProfile profile;
   profile.CreateRequestContext();
 
-  SyncBackendHost backend(&profile);
+  SyncBackendHost backend(profile.GetDebugName(), &profile);
 
   // TODO(akalin): Handle this in SyncBackendHost instead of in
   // ProfileSyncService, or maybe figure out a way to share the
   // "register sync prefs" code.
   PrefService* pref_service = profile.GetPrefs();
   pref_service->RegisterStringPref(prefs::kEncryptionBootstrapToken, "");
   pref_service->RegisterBooleanPref(prefs::kSyncHasSetupCompleted,
                                     false,
                                     PrefService::UNSYNCABLE_PREF);
 
   MockSyncFrontend mock_frontend;
   sync_api::SyncCredentials credentials;
   credentials.email = "user@example.com";
   credentials.sync_token = "sync_token";
   backend.Initialize(&mock_frontend,
                      WeakHandle<JsEventHandler>(),
                      GURL(k_mock_url),
                      syncable::ModelTypeSet(),
                      credentials,
                      true);
   backend.Shutdown(false);
 }
 
 // TODO(akalin): Write more SyncBackendHost unit tests.
 
 }  // namespace browser_sync