src/vs/workbench/contrib/preferences/browser/keybindingsEditor.ts/KeybindingsEditor/createAddKeybindingAction
class KeybindingsEditor:	private createAddKeybindingAction(keybindingItemEntry: IKeybindingItemEntry): IAction {
		return <IAction>{
			label: localize('addLabel', "Add Keybinding..."),
			enabled: true,
			id: KEYBINDINGS_EDITOR_COMMAND_ADD,
			run: () => this.defineKeybinding(keybindingItemEntry, true)
		};
	}