[Sync] Remove unneeded 'using syncer::' lines and 'syncer::' scopings

sync/engine/all_status.h

 // Copyright (c) 2012 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.
 //
 // The AllStatus object watches various sync engine components and aggregates
 // the status of all of them into one place.
 
 #ifndef SYNC_INTERNAL_API_ALL_STATUS_H_
 #define SYNC_INTERNAL_API_ALL_STATUS_H_
 
@@ skipping 22 matching lines @@
 // we will continue to collect data and update state mid-sync-cycle in case we
 // need to debug slow or stuck sync cycles.
 class AllStatus : public SyncEngineEventListener {
   friend class ScopedStatusLock;
  public:
   AllStatus();
   virtual ~AllStatus();
 
   virtual void OnSyncEngineEvent(const SyncEngineEvent& event) OVERRIDE;
 
-  syncer::SyncStatus status() const;
+  SyncStatus status() const;
 
   void SetNotificationsEnabled(bool notifications_enabled);
 
   void IncrementNotifiableCommits();
 
   void IncrementNotificationsReceived();
 
-  void SetThrottledTypes(const syncer::ModelTypeSet &types);
+  void SetThrottledTypes(const ModelTypeSet &types);
 
-  void SetEncryptedTypes(syncer::ModelTypeSet types);
+  void SetEncryptedTypes(ModelTypeSet types);
   void SetCryptographerReady(bool ready);
   void SetCryptoHasPendingKeys(bool has_pending_keys);
 
   void SetUniqueId(const std::string& guid);
 
  protected:
   // Examines syncer to calculate syncing and the unsynced count,
   // and returns a Status with new values.
-  syncer::SyncStatus CalcSyncing(const SyncEngineEvent& event) const;
-  syncer::SyncStatus CreateBlankStatus() const;
+  SyncStatus CalcSyncing(const SyncEngineEvent& event) const;
+  SyncStatus CreateBlankStatus() const;
 
-  syncer::SyncStatus status_;
+  SyncStatus status_;
 
   mutable base::Lock mutex_;  // Protects all data members.
   DISALLOW_COPY_AND_ASSIGN(AllStatus);
 };
 
 class ScopedStatusLock {
  public:
   explicit ScopedStatusLock(AllStatus* allstatus);
   ~ScopedStatusLock();
  protected:
   AllStatus* allstatus_;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_ALL_STATUS_H_