Remove #pragma once from content

content/browser/geolocation/core_location_data_provider_mac.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.
 
 // This file declares a CoreLocation data provider class that allows the
 // CoreLocation framework to run on the UI thread, since the Geolocation API's
 // providers all live on the IO thread
 
 #ifndef CONTENT_BROWSER_GEOLOCATION_CORE_LOCATION_DATA_PROVIDER_H_
 #define CONTENT_BROWSER_GEOLOCATION_CORE_LOCATION_DATA_PROVIDER_H_
-#pragma once
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_nsobject.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/geoposition.h"
 
 #import <Foundation/Foundation.h>
 
 class CoreLocationProviderMac;
 @class CoreLocationWrapperMac;
@@ skipping 21 matching lines @@
   // This must execute in the origin thread (IO thread)
   void PositionUpdated(content::Geoposition position);
 
   // The wrapper class that supplies this class with position data
   scoped_nsobject<CoreLocationWrapperMac> wrapper_;
   // The LocationProviderBase class that should receive position data
   CoreLocationProviderMac* provider_;
 };
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_CORE_LOCATION_DATA_PROVIDER_H_