Remove #pragma once from chrome/browser/{tab_contents,password_manager,profiles,search_engines,noti…

chrome/browser/tab_contents/render_view_context_menu_observer.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 CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_
-#pragma once
 
 namespace content {
 struct ContextMenuParams;
 }
 
 // The interface used for implementing context-menu items. The following
 // instruction describe how to implement a context-menu item with this
 // interface.
 //
 // 1. Add command IDs for the context-menu items to 'chrome_command_ids.h'.
@@ skipping 78 matching lines @@
   // specified context-menu item. If we need to enable or disable a context-menu
   // item while showing, use RenderViewContextMenuDelegate::UpdateMenuItem().
   virtual bool IsCommandIdChecked(int command_id);
   virtual bool IsCommandIdEnabled(int command_id);
 
   // Called when a user selects the specified context-menu item.
   virtual void ExecuteCommand(int command_id);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_