Remove #pragma once from content

content/public/browser/notification_source.h

 // 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.
 
 // This file defines the type used to provide sources for NotificationService
 // notifications.
 
 #ifndef CONTENT_PUBLIC_BROWSER_NOTIFICATION_SOURCE_H_
 #define CONTENT_PUBLIC_BROWSER_NOTIFICATION_SOURCE_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 // Do not declare a NotificationSource directly--use either
 // "Source<sourceclassname>(sourceclasspointer)" or
 // NotificationService::AllSources().
 class CONTENT_EXPORT NotificationSource {
@@ skipping 30 matching lines @@
     : NotificationSource(other) {}
 
   T* operator->() const { return ptr(); }
   // The casts here allow this to compile with both T = Foo and T = const Foo.
   T* ptr() const { return static_cast<T*>(const_cast<void*>(ptr_)); }
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NOTIFICATION_SOURCE_H_