Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/api/app/app_api.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 CHROME_BROWSER_EXTENSIONS_API_APP_APP_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_APP_APP_API_H_
-#pragma once
 
 #include "chrome/browser/extensions/extension_function.h"
 
 class Profile;
 class GURL;
 
 namespace webkit_glue {
 struct WebIntentData;
 }
 
@@ skipping 53 matching lines @@
   // called intent, populated by |web_intent_data|.
   static void DispatchOnLaunchedEventWithWebIntent(
       Profile* profile,
       const Extension* extension,
       const webkit_glue::WebIntentData web_intent_data);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_APP_APP_API_H_