Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/location_bar_controller.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_LOCATION_BAR_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_LOCATION_BAR_CONTROLLER_H_
-#pragma once
 
 #include <set>
 #include <string>
 #include <vector>
 
 class ExtensionAction;
 
 namespace extensions {
 
 // Interface for a class that controls the the extension icons that show up in
@@ skipping 21 matching lines @@
   virtual Action OnClicked(const std::string& extension_id,
                            int mouse_button) = 0;
 
   // Notifies clients that the icons have changed.
   virtual void NotifyChange() = 0;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_LOCATION_BAR_CONTROLLER_H_