src/vs/workbench/browser/parts/editor/editorGroupView.ts/EditorGroupView/createContainerContextMenu
class EditorGroupView:	private createContainerContextMenu(): void {
		this._register(addDisposableListener(this.element, EventType.CONTEXT_MENU, e => this.onShowContainerContextMenu(e)));
		this._register(addDisposableListener(this.element, TouchEventType.Contextmenu, () => this.onShowContainerContextMenu()));
	}