Remove base/port.h includes that are not necessary anymore.

sync/engine/update_applicator.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.
 //
 // An UpdateApplicator is used to iterate over a number of unapplied updates,
 // applying them to the client using the given syncer session.
 //
 // UpdateApplicator might resemble an iterator, but it actually keeps retrying
 // failed updates until no remaining updates can be successfully applied.
 
 #ifndef SYNC_ENGINE_UPDATE_APPLICATOR_H_
 #define SYNC_ENGINE_UPDATE_APPLICATOR_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
-#include "base/port.h"
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 #include "sync/syncable/syncable_id.h"
 #include "sync/sessions/status_controller.h"
 
 namespace syncer {
 
 namespace sessions {
 class StatusController;
 }
 
@@ skipping 41 matching lines @@
 
   int updates_applied_;
   int encryption_conflicts_;
   int hierarchy_conflicts_;
   std::set<syncable::Id> simple_conflict_ids_;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_UPDATE_APPLICATOR_H_