[Sync] Add ability to save/restore Nigori to SyncEncryptionHandlerImpl

sync/internal_api/sync_manager_impl_unittest.cc

 // Copyright 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.
 
 // Unit tests for the SyncApi. Note that a lot of the underlying
 // functionality is provided by the Syncable layer, which has its own
 // unit tests. We'll test SyncApi specific things in this harness.
 
 #include <cstddef>
 #include <map>
@@ skipping 799 matching lines @@
                     const sync_pb::EncryptedData&));  // NOLINT
   MOCK_METHOD0(OnPassphraseAccepted, void());  // NOLINT
   MOCK_METHOD2(OnBootstrapTokenUpdated,
                void(const std::string&, BootstrapTokenType type));  // NOLINT
   MOCK_METHOD2(OnEncryptedTypesChanged,
                void(ModelTypeSet, bool));  // NOLINT
   MOCK_METHOD0(OnEncryptionComplete, void());  // NOLINT
   MOCK_METHOD1(OnCryptographerStateChanged, void(Cryptographer*));  // NOLINT
   MOCK_METHOD2(OnPassphraseTypeChanged, void(PassphraseType,
                                              base::Time));  // NOLINT
+  MOCK_METHOD1(OnLocalSetCustomPassphrase,
+               void(const SyncEncryptionHandler::NigoriState&));  // NOLINT
 };
 
 }  // namespace
 
 class SyncManagerTest : public testing::Test,
                         public SyncManager::ChangeDelegate {
  protected:
   enum NigoriStatus {
     DONT_WRITE_NIGORI,
     WRITE_TO_NIGORI
@@ skipping 2396 matching lines @@
 // SyncManagerInitInvalidStorageTest::GetFactory will return
 // DirectoryBackingStore that ensures that SyncManagerImpl::OpenDirectory fails.
 // SyncManagerImpl initialization is done in SyncManagerTest::SetUp. This test's
 // task is to ensure that SyncManagerImpl reported initialization failure in
 // OnInitializationComplete callback.
 TEST_F(SyncManagerInitInvalidStorageTest, FailToOpenDatabase) {
   EXPECT_FALSE(initialization_succeeded_);
 }
 
 }  // namespace syncer