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

components/sync/driver/user_selectable_sync_type.h

 // 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.
 
 #ifndef COMPONENTS_SYNC_DRIVER_USER_SELECTABLE_SYNC_TYPE_H_
 #define COMPONENTS_SYNC_DRIVER_USER_SELECTABLE_SYNC_TYPE_H_
 
-namespace sync_driver {
+namespace syncer {
 namespace user_selectable_type {
 
 // An enumeration of the sync datatypes that are explicitly exposed to the user
 // via checkboxes in the "Advanced Sync Preferences" dialog. Used solely for the
 // purposes of UMA histogram logging of the datatypes explicitly selected by
 // users when sync is configured on a machine. This is a subset of the sync
 // types listed in sync/base/model_type.h.
 //
 // Note: New sync datatypes must be added to the end of this list. Adding them
 // anywhere else will result in incorrect histogram logging.
@@ skipping 40 matching lines @@
   // SYNCED_NOTIFICATION_APP_INFO,
   // ARC_PACKAGE,
   // PRINTERS
   // READING_LIST
 
   // Number of sync datatypes exposed to the user via checboxes in the UI.
   SELECTABLE_DATATYPE_COUNT = 11,
 };
 
 }  // namespace user_selectable_type
-}  // namespace sync_driver
+}  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_DRIVER_USER_SELECTABLE_SYNC_TYPE_H_