Revert of [Sync] Move //components/sync to the syncer namespace. (patchset #5 id:40001 of https://co

components/ntp_snippets/sessions/tab_delegate_sync_adapter.h

 // Copyright 2016 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_NTP_SNIPPETS_SESSIONS_TAB_DELEGATE_SYNC_ADAPTER_H_
 #define COMPONENTS_NTP_SNIPPETS_SESSIONS_TAB_DELEGATE_SYNC_ADAPTER_H_
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.h"
 #include "components/sync/driver/sync_service_observer.h"
 
-namespace syncer {
+namespace sync_driver {
 class SyncService;
-}  // namespace syncer
+}  // namespace sync_driver
 
 namespace ntp_snippets {
 
 // Adapter that sits on top of SyncService and OpenTabsUIDelegate and provides
 // simplified notifications and accessors for foreign tabs data.
-class TabDelegateSyncAdapter : public syncer::SyncServiceObserver,
+class TabDelegateSyncAdapter : public sync_driver::SyncServiceObserver,
                                public ForeignSessionsProvider {
  public:
-  explicit TabDelegateSyncAdapter(syncer::SyncService* sync_service);
+  explicit TabDelegateSyncAdapter(sync_driver::SyncService* sync_service);
   ~TabDelegateSyncAdapter() override;
 
   // ForeignSessionsProvider implementation.
   bool HasSessionsData() override;
   std::vector<const sync_sessions::SyncedSession*> GetAllForeignSessions()
       override;
   void SubscribeForForeignTabChange(
       const base::Closure& change_callback) override;
 
  private:
-  // syncer::SyncServiceObserver implementation.
+  // sync_driver::SyncServiceObserver implementation.
   void OnStateChanged() override;
   void OnSyncConfigurationCompleted() override;
   void OnForeignSessionUpdated() override;
 
   void InvokeCallback();
 
-  syncer::SyncService* sync_service_;
+  sync_driver::SyncService* sync_service_;
   base::Closure change_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(TabDelegateSyncAdapter);
 };
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_SESSIONS_TAB_DELEGATE_SYNC_ADAPTER_H_