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

chrome/browser/sync/glue/sync_backend_host_core.cc

 // Copyright 2013 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_core.h"
 
 #include "base/files/file_util.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 281 matching lines @@
 }
 
 void SyncBackendHostCore::OnPassphraseTypeChanged(
     syncer::PassphraseType type, base::Time passphrase_time) {
   host_.Call(
       FROM_HERE,
       &SyncBackendHostImpl::HandlePassphraseTypeChangedOnFrontendLoop,
       type, passphrase_time);
 }
 
+void SyncBackendHostCore::OnLocalSetPassphraseEncryption(
+    const syncer::SyncEncryptionHandler::NigoriState& nigori_state) {
+  host_.Call(
+      FROM_HERE,
+      &SyncBackendHostImpl::HandleLocalSetPassphraseEncryptionOnFrontendLoop,
+      nigori_state);
+}
+
 void SyncBackendHostCore::OnCommitCountersUpdated(
     syncer::ModelType type,
     const syncer::CommitCounters& counters) {
   host_.Call(
       FROM_HERE,
       &SyncBackendHostImpl::HandleDirectoryCommitCountersUpdatedOnFrontendLoop,
       type, counters);
 }
 
 void SyncBackendHostCore::OnUpdateCountersUpdated(
@@ skipping 412 matching lines @@
       base::TimeDelta::FromSeconds(kSaveChangesIntervalSeconds),
       this, &SyncBackendHostCore::SaveChanges);
 }
 
 void SyncBackendHostCore::SaveChanges() {
   DCHECK_EQ(base::MessageLoop::current(), sync_loop_);
   sync_manager_->SaveChanges();
 }
 
 }  // namespace browser_sync