Fix var hiding bug in sync's UIModelWorker

chrome/browser/sync/glue/ui_model_worker.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/sync/glue/ui_model_worker.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 50 matching lines @@
   }
 
   // Create an unsignaled event to wait on.
   base::WaitableEvent work_done(false, false);
   {
     // We lock only to avoid PostTask'ing a NULL pending_work_ (because it
     // could get Run() in Stop() and call OnTaskCompleted before we post).
     // The task is owned by the message loop as per usual.
     base::AutoLock lock(lock_);
     DCHECK(pending_work_.is_null());
-    UnrecoverableErrorInfo error_info;
     pending_work_ = base::Bind(&CallDoWorkAndSignalCallback, work, &work_done,
                                base::Unretained(this), &error_info);
     if (!BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, pending_work_)) {
       LOG(WARNING) << "Could not post work to UI loop.";
       pending_work_.Reset();
       syncapi_event_.Signal();
       return error_info;
     }
   }
   syncapi_event_.Signal();  // Notify that the syncapi produced work for us.
@@ skipping 45 matching lines @@
   }
 
   state_ = STOPPED;
 }
 
 ModelSafeGroup UIModelWorker::GetModelSafeGroup() {
   return GROUP_UI;
 }
 
 }  // namespace browser_sync