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

sync/engine/sync_scheduler_impl.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.
 
 #ifndef SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 #define SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 27 matching lines @@
   // Calls Stop().
   virtual ~SyncSchedulerImpl();
 
   virtual void Start(Mode mode) OVERRIDE;
   virtual bool ScheduleConfiguration(
       const ConfigurationParams& params) OVERRIDE;
   virtual void RequestStop(const base::Closure& callback) OVERRIDE;
   virtual void ScheduleNudgeAsync(
       const base::TimeDelta& delay,
       NudgeSource source,
-      syncer::ModelTypeSet types,
+      ModelTypeSet types,
       const tracked_objects::Location& nudge_location) OVERRIDE;
   virtual void ScheduleNudgeWithPayloadsAsync(
       const base::TimeDelta& delay, NudgeSource source,
-      const syncer::ModelTypePayloadMap& types_with_payloads,
+      const ModelTypePayloadMap& types_with_payloads,
       const tracked_objects::Location& nudge_location) OVERRIDE;
   virtual void SetNotificationsEnabled(bool notifications_enabled) OVERRIDE;
 
   virtual base::TimeDelta GetSessionsCommitDelay() const OVERRIDE;
 
   virtual void OnCredentialsUpdated() OVERRIDE;
   virtual void OnConnectionStatusChange() OVERRIDE;
 
   // SyncSession::Delegate implementation.
   virtual void OnSilencedUntil(
@@ skipping 190 matching lines @@
 
   // Coalesces the current job with the pending nudge.
   void InitOrCoalescePendingJob(const SyncSessionJob& job);
 
   // 'Impl' here refers to real implementation of public functions, running on
   // |thread_|.
   void StopImpl(const base::Closure& callback);
   void ScheduleNudgeImpl(
       const base::TimeDelta& delay,
       sync_pb::GetUpdatesCallerInfo::GetUpdatesSource source,
-      const syncer::ModelTypePayloadMap& types_with_payloads,
+      const ModelTypePayloadMap& types_with_payloads,
       bool is_canary_job, const tracked_objects::Location& nudge_location);
 
   // Returns true if the client is currently in exponential backoff.
   bool IsBackingOff() const;
 
   // Helper to signal all listeners registered with |session_context_|.
   void Notify(SyncEngineEvent::EventCause cause);
 
   // Callback to change backoff state.
   void DoCanaryJob();
   void Unthrottle();
 
   // Executes the pending job. Called whenever an event occurs that may
   // change conditions permitting a job to run. Like when network connection is
   // re-established, mode changes etc.
   void DoPendingJobIfPossible(bool is_canary_job);
 
   // Called when the root cause of the current connection error is fixed.
   void OnServerConnectionErrorFixed();
 
   // The pointer is owned by the caller.
-  syncer::sessions::SyncSession* CreateSyncSession(
-      const syncer::sessions::SyncSourceInfo& info);
+  sessions::SyncSession* CreateSyncSession(
+      const sessions::SyncSourceInfo& info);
 
   // Creates a session for a poll and performs the sync.
   void PollTimerCallback();
 
   // Used to update |connection_code_|, see below.
   void UpdateServerConnectionManagerStatus(
       HttpResponse::ServerConnectionCode code);
 
   // Called once the first time thread_ is started to broadcast an initial
   // session snapshot containing data like initial_sync_ended.  Important when
@@ skipping 54 matching lines @@
   scoped_ptr<Syncer> syncer_;
 
   sessions::SyncSessionContext *session_context_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSchedulerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_