[Sync] Move //components/sync to the syncer namespace, take 2.

components/sync/test/engine/mock_update_handler.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 "components/sync/test/engine/mock_update_handler.h"
 
 #include <string>
 
 namespace syncer {
 
@@ skipping 20 matching lines @@
     sync_pb::DataTypeContext* context) const {
   context->Clear();
 }
 
 SyncerError MockUpdateHandler::ProcessGetUpdatesResponse(
     const sync_pb::DataTypeProgressMarker& progress_marker,
     const sync_pb::DataTypeContext& mutated_context,
     const SyncEntityList& applicable_updates,
     StatusController* status) {
   progress_marker_.CopyFrom(progress_marker);
-  return syncer::SYNCER_OK;
+  return SYNCER_OK;
 }
 
 void MockUpdateHandler::ApplyUpdates(StatusController* status) {
   apply_updates_count_++;
 }
 
 void MockUpdateHandler::PassiveApplyUpdates(StatusController* status) {
   passive_apply_updates_count_++;
 }
 
 int MockUpdateHandler::GetApplyUpdatesCount() {
   return apply_updates_count_;
 }
 
 int MockUpdateHandler::GetPassiveApplyUpdatesCount() {
   return passive_apply_updates_count_;
 }
 
 }  // namespace syncer