Remove #pragma once from content

content/public/common/security_style.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.
 
 #ifndef CONTENT_PUBLIC_COMMON_SECURITY_STYLE_H_
 #define CONTENT_PUBLIC_COMMON_SECURITY_STYLE_H_
-#pragma once
 
 namespace content {
 
 // Various aspects of the UI change their appearance according to the security
 // context in which they are displayed.  For example, the location bar displays
 // a lock icon when it is displayed during a valid SSL connection.
 // SecuritySyle enumerates these styles, but it is up to the UI elements to
 // adjust their display appropriately.
 enum SecurityStyle {
   // SECURITY_STYLE_UNKNOWN indicates that we do not know the proper security
@@ skipping 12 matching lines @@
   SECURITY_STYLE_AUTHENTICATION_BROKEN,
 
   // SECURITY_STYLE_AUTHENTICATED indicates that we successfully retrieved this
   // object over an authenticated protocol, such as HTTPS.
   SECURITY_STYLE_AUTHENTICATED,
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_SECURITY_STYLE_H_