Wire sync shutdown reason from PSS all the way down to sync manager.

chrome/browser/sync/glue/sync_backend_host_mock.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_mock.h"
 
 #include "components/sync_driver/sync_frontend.h"
 
 namespace browser_sync {
 
@@ skipping 30 matching lines @@
     const std::string& passphrase,
     bool is_explicit) {}
 
 bool SyncBackendHostMock::SetDecryptionPassphrase(
     const std::string& passphrase) {
   return false;
 }
 
 void SyncBackendHostMock::StopSyncingForShutdown() {}
 
-scoped_ptr<base::Thread> SyncBackendHostMock::Shutdown(ShutdownOption option) {
+scoped_ptr<base::Thread> SyncBackendHostMock::Shutdown(
+    syncer::ShutdownReason reason) {
   return scoped_ptr<base::Thread>();
 }
 
 void SyncBackendHostMock::UnregisterInvalidationIds() {}
 
 void SyncBackendHostMock::ConfigureDataTypes(
     syncer::ConfigureReason reason,
     const DataTypeConfigStateMap& config_state_map,
     const base::Callback<void(syncer::ModelTypeSet,
                               syncer::ModelTypeSet)>& ready_task,
@@ skipping 68 matching lines @@
     syncer::ModelTypeSet types,
     base::Callback<void(const std::vector<syncer::ModelType>& type,
                         ScopedVector<base::ListValue>) > callback) {}
 
 void SyncBackendHostMock::set_fail_initial_download(bool should_fail) {
   fail_initial_download_ = should_fail;
 }
 
 }  // namespace browser_sync