Refactor sync passphrase setup flow and fix passphrase tests

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/message_loop.h"
 #include "base/scoped_ptr.h"
@@ skipping 20 matching lines @@
   virtual ~MockSyncFrontend() {}
 
   MOCK_METHOD0(OnBackendInitialized, void());
   MOCK_METHOD0(OnSyncCycleCompleted, void());
   MOCK_METHOD0(OnAuthError, void());
   MOCK_METHOD0(OnStopSyncingPermanently, void());
   MOCK_METHOD0(OnClearServerDataSucceeded, void());
   MOCK_METHOD0(OnClearServerDataFailed, void());
   MOCK_METHOD1(OnPassphraseRequired, void(bool));
   MOCK_METHOD0(OnPassphraseAccepted, void());
+  MOCK_METHOD0(OnPassphraseFailed, void());
   MOCK_METHOD1(OnEncryptionComplete, void(const syncable::ModelTypeSet&));
   MOCK_METHOD1(OnMigrationNeededForTypes, void(const syncable::ModelTypeSet&));
 };
 
 }  // namespace
 
 class SyncBackendHostTest : public testing::Test {
  protected:
   SyncBackendHostTest()
       : ui_thread_(BrowserThread::UI, &ui_loop_),
@@ skipping 143 matching lines @@
     EXPECT_FALSE(state->ready_task.get());
     EXPECT_EQ(types, state->initial_types);
     EXPECT_TRUE(state->deleted_type);
     EXPECT_TRUE(state->added_types.none());
   }
 }
 
 // TODO(akalin): Write more SyncBackendHost unit tests.
 
 }  // namespace browser_sync