Remove #pragma once from content

content/browser/geolocation/geolocation_observer.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 CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_OBSERVER_H_
 #define CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_OBSERVER_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 
 namespace content {
 struct Geoposition;
 }
 
 // This interface is implemented by observers of GeolocationProvider as
 // well as GeolocationProvider itself as an observer of GeolocationArbitrator.
@@ skipping 32 matching lines @@
 
   // Collapse options with another instance so that both are satisfied.
   void Collapse(const GeolocationObserverOptions& other) {
     use_high_accuracy = use_high_accuracy | other.use_high_accuracy;
   }
 
   bool use_high_accuracy;
 };
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_OBSERVER_H_