Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/updater/manifest_fetch_data.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_UPDATER_MANIFEST_FETCH_DATA_H_
 #define CHROME_BROWSER_EXTENSIONS_UPDATER_MANIFEST_FETCH_DATA_H_
-#pragma once
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "googleurl/src/gurl.h"
 
 namespace extensions {
 
@@ skipping 63 matching lines @@
   // The base update url plus arguments indicating the id, version, etc.
   // information about each extension.
   GURL full_url_;
 
   DISALLOW_COPY_AND_ASSIGN(ManifestFetchData);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_UPDATER_MANIFEST_FETCH_DATA_H_