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

sync/sessions/model_type_registry.cc

 // Copyright 2014 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 "sync/sessions/model_type_registry.h"
 
 #include "base/bind.h"
 #include "base/observer_list.h"
 #include "base/thread_task_runner_handle.h"
 #include "sync/engine/directory_commit_contributor.h"
@@ skipping 315 matching lines @@
 void ModelTypeRegistry::OnCryptographerStateChanged(
     Cryptographer* cryptographer) {
   cryptographer_.reset(new Cryptographer(*cryptographer));
   OnEncryptionStateChanged();
 }
 
 void ModelTypeRegistry::OnPassphraseTypeChanged(PassphraseType type,
                                                 base::Time passphrase_time) {
 }
 
+void ModelTypeRegistry::OnLocalSetCustomPassphrase(
+    const SyncEncryptionHandler::NigoriState& nigori_state) {
+}
+
 ModelTypeSet ModelTypeRegistry::GetEnabledDirectoryTypes() const {
   return enabled_directory_types_;
 }
 
 void ModelTypeRegistry::OnEncryptionStateChanged() {
   for (ScopedVector<ModelTypeSyncWorkerImpl>::iterator it =
            model_type_sync_workers_.begin();
        it != model_type_sync_workers_.end();
        ++it) {
     if (encrypted_types_.Has((*it)->GetModelType())) {
       (*it)->UpdateCryptographer(
           make_scoped_ptr(new Cryptographer(*cryptographer_)));
     }
   }
 }
 
 ModelTypeSet ModelTypeRegistry::GetEnabledNonBlockingTypes() const {
   ModelTypeSet enabled_off_thread_types;
   for (ScopedVector<ModelTypeSyncWorkerImpl>::const_iterator it =
            model_type_sync_workers_.begin();
        it != model_type_sync_workers_.end();
        ++it) {
     enabled_off_thread_types.Put((*it)->GetModelType());
   }
   return enabled_off_thread_types;
 }
 
 }  // namespace syncer