Remove #pragma once from content

content/browser/geolocation/device_data_provider.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.
 
 // A device data provider provides data from the device that is used by a
 // NetworkLocationProvider to obtain a position fix. This data may be either
 // cell radio data or wifi data. For a given type of data, we use a singleton
 // instance of the device data provider, which is used by multiple
 // NetworkLocationProvider objects.
 //
 // This file providers DeviceDataProvider, which provides static methods to
 // access the singleton instance. The singleton instance uses a private
 // implementation to abstract across platforms and also to allow mock providers
 // to be used for testing.
 //
 // This file also provides DeviceDataProviderImplBase, a base class which
 // provides commom functionality for the private implementations.
 //
 // This file also declares the data structures used to represent cell radio data
 // and wifi data.
 
 #ifndef CONTENT_BROWSER_GEOLOCATION_DEVICE_DATA_PROVIDER_H_
 #define CONTENT_BROWSER_GEOLOCATION_DEVICE_DATA_PROVIDER_H_
-#pragma once
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/threading/non_thread_safe.h"
@@ skipping 262 matching lines @@
 
   // The internal implementation.
   scoped_refptr<DeviceDataProviderImplBase<DataType> > impl_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceDataProvider);
 };
 
 typedef DeviceDataProvider<WifiData> WifiDataProvider;
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_DEVICE_DATA_PROVIDER_H_