Remove #pragma once from content

content/browser/renderer_host/gtk_key_bindings_handler.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_BROWSER_RENDERER_HOST_GTK_KEY_BINDINGS_HANDLER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_GTK_KEY_BINDINGS_HANDLER_H_
-#pragma once
 
 #include <gtk/gtk.h>
 
 #include <string>
 
 #include "content/common/edit_command.h"
 #include "content/common/content_export.h"
 #include "ui/base/gtk/owned_widget_gtk.h"
 
 namespace content {
@@ skipping 105 matching lines @@
   // Handler of "move-focus" signal.
   static void MoveFocus(GtkWidget* widget, GtkDirectionType arg1);
 
   ui::OwnedWidgetGtk handler_;
 
   // Buffer to store the match results.
   EditCommands edit_commands_;
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_GTK_KEY_BINDINGS_HANDLER_H_