[Sync] Add support for performing a GetKey on startup.

sync/sessions/test_util.h

 // Copyright (c) 2012 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.
 //
 // Utils to simulate various outcomes of a sync session.
 #ifndef SYNC_SESSIONS_TEST_UTIL_H_
 #define SYNC_SESSIONS_TEST_UTIL_H_
 
 #include "sync/engine/syncer.h"
 #include "sync/sessions/sync_session.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 namespace sessions {
 namespace test_util {
 
 void SimulateHasMoreToSync(sessions::SyncSession* session,
                            SyncerStep begin, SyncerStep end);
+void SimulateGetEncryptionKeyFailed(sessions::SyncSession* session,
+                                    SyncerStep begin, SyncerStep end);
 void SimulateDownloadUpdatesFailed(sessions::SyncSession* session,
                                    SyncerStep begin, SyncerStep end);
 void SimulateCommitFailed(sessions::SyncSession* session,
                           SyncerStep begin, SyncerStep end);
 void SimulateConnectionFailure(sessions::SyncSession* session,
                           SyncerStep begin, SyncerStep end);
 void SimulateSuccess(sessions::SyncSession* session,
                      SyncerStep begin, SyncerStep end);
 void SimulateThrottledImpl(sessions::SyncSession* session,
     const base::TimeDelta& delta);
@@ skipping 12 matching lines @@
 
 ACTION_P(SimulateSessionsCommitDelayUpdate, poll) {
   SimulateSessionsCommitDelayUpdateImpl(arg0, poll);
 }
 
 }  // namespace test_util
 }  // namespace sessions
 }  // namespace syncer
 
 #endif  // SYNC_SESSIONS_TEST_UTIL_H_