FBTF: Remove "obviously" unneeded standard C++ library #includes.

chrome/browser/sync/engine/update_applicator.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 CHROME_BROWSER_SYNC_ENGINE_UPDATE_APPLICATOR_H_
 #define CHROME_BROWSER_SYNC_ENGINE_UPDATE_APPLICATOR_H_
 #pragma once
 
-#include <set>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/port.h"
 #include "chrome/browser/sync/engine/model_safe_worker.h"
 #include "chrome/browser/sync/syncable/syncable.h"
 
 namespace browser_sync {
 
 namespace sessions {
@@ skipping 51 matching lines @@
   const ModelSafeRoutingInfo routing_info_;
 
   // Track the result of the various items.
   std::vector<syncable::Id> conflicting_ids_;
   std::vector<syncable::Id> successful_ids_;
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_ENGINE_UPDATE_APPLICATOR_H_