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

components/browsing_data/core/counters/history_counter.h

 // 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.
 
 #ifndef COMPONENTS_BROWSING_DATA_CORE_COUNTERS_HISTORY_COUNTER_H_
 #define COMPONENTS_BROWSING_DATA_CORE_COUNTERS_HISTORY_COUNTER_H_
 
+#include <memory>
+
 #include "base/task/cancelable_task_tracker.h"
 #include "base/timer/timer.h"
 #include "components/browsing_data/core/counters/browsing_data_counter.h"
 #include "components/history/core/browser/history_service.h"
 #include "components/history/core/browser/web_history_service.h"
 #include "components/sync/driver/sync_service.h"
 #include "components/sync/driver/sync_service_observer.h"
 
 namespace browsing_data {
 
 class HistoryCounter : public browsing_data::BrowsingDataCounter,
-                       public sync_driver::SyncServiceObserver {
+                       public syncer::SyncServiceObserver {
  public:
   typedef base::Callback<history::WebHistoryService*()>
       GetUpdatedWebHistoryServiceCallback;
 
   class HistoryResult : public FinishedResult {
    public:
     HistoryResult(const HistoryCounter* source,
                   ResultInt value,
                   bool has_synced_visits);
     ~HistoryResult() override;
 
     bool has_synced_visits() const { return has_synced_visits_; }
 
    private:
     bool has_synced_visits_;
   };
 
   explicit HistoryCounter(history::HistoryService* history_service,
                           const GetUpdatedWebHistoryServiceCallback& callback,
-                          sync_driver::SyncService* sync_service);
+                          syncer::SyncService* sync_service);
   ~HistoryCounter() override;
 
   void OnInitialized() override;
 
   // Whether there are counting tasks in progress. Only used for testing.
   bool HasTrackedTasks();
 
   const char* GetPrefName() const override;
 
  private:
   void Count() override;
 
   void OnGetLocalHistoryCount(history::HistoryCountResult result);
   void OnGetWebHistoryCount(history::WebHistoryService::Request* request,
                             const base::DictionaryValue* result);
   void OnWebHistoryTimeout();
   void MergeResults();
 
   // SyncServiceObserver implementation.
   void OnStateChanged() override;
 
   history::HistoryService* history_service_;
 
   GetUpdatedWebHistoryServiceCallback web_history_service_callback_;
 
-  sync_driver::SyncService* sync_service_;
+  syncer::SyncService* sync_service_;
 
   bool has_synced_visits_;
 
   bool local_counting_finished_;
   bool web_counting_finished_;
 
   base::CancelableTaskTracker cancelable_task_tracker_;
   std::unique_ptr<history::WebHistoryService::Request> web_history_request_;
   base::OneShotTimer web_history_timeout_;
 
   base::ThreadChecker thread_checker_;
 
   BrowsingDataCounter::ResultInt local_result_;
 
   bool history_sync_enabled_;
 
   base::WeakPtrFactory<HistoryCounter> weak_ptr_factory_;
 };
 
 }  // namespace browsing_data
 
 #endif  // COMPONENTS_BROWSING_DATA_CORE_COUNTERS_HISTORY_COUNTER_H_