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

components/sync/engine_impl/directory_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/engine_impl/directory_update_handler.h"
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "components/sync/base/data_type_histogram.h"
 #include "components/sync/engine_impl/conflict_resolver.h"
 #include "components/sync/engine_impl/cycle/directory_type_debug_info_emitter.h"
 #include "components/sync/engine_impl/cycle/status_controller.h"
 #include "components/sync/engine_impl/process_updates_util.h"
 #include "components/sync/engine_impl/update_applicator.h"
 #include "components/sync/syncable/directory.h"
 #include "components/sync/syncable/model_neutral_mutable_entry.h"
 #include "components/sync/syncable/syncable_changes_version.h"
 #include "components/sync/syncable/syncable_model_neutral_write_transaction.h"
 #include "components/sync/syncable/syncable_write_transaction.h"
 
 namespace syncer {
 
-using syncable::SYNCER;
+using syncer::syncable::SYNCER;
 
 DirectoryUpdateHandler::DirectoryUpdateHandler(
     syncable::Directory* dir,
     ModelType type,
     scoped_refptr<ModelSafeWorker> worker,
     DirectoryTypeDebugInfoEmitter* debug_info_emitter)
     : dir_(dir),
       type_(type),
       worker_(worker),
       debug_info_emitter_(debug_info_emitter) {}
@@ skipping 267 matching lines @@
            new_gc_directive.version_watermark())) {
     ExpireEntriesByVersion(dir_, trans, type_,
                            new_gc_directive.version_watermark());
   }
 
   cached_gc_directive_.reset(
       new sync_pb::GarbageCollectionDirective(new_gc_directive));
 }
 
 }  // namespace syncer