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

chrome/browser/browsing_data/history_counter_browsertest.cc

 // Copyright (c) 2015 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/browsing_data/core/counters/history_counter.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/run_loop.h"
 #include "chrome/browser/history/history_service_factory.h"
@@ skipping 436 matching lines @@
   sync_blocker.reset();
   WaitForCountingOrConfirmFinished();
 
   // Changing the syncing datatypes to another set that still includes history
   // deletion should technically not trigger a restart, because the state of
   // history deletion did not change. However, in reality we can get two
   // notifications, one that history sync has stopped and another that it is
   // active again.
 
   // Stopping the Sync service triggers a restart.
-  sync_service->RequestStop(sync_driver::SyncService::CLEAR_DATA);
+  sync_service->RequestStop(syncer::SyncService::CLEAR_DATA);
   WaitForCountingOrConfirmFinished();
 }
 
 }  // namespace