src/vs/workbench/browser/parts/editor/editorPart.ts/EditorPart/enforcePartOptions
class EditorPart:	enforcePartOptions(options: IEditorPartOptions): IDisposable {
		this.enforcedPartOptions.push(options);
		this.handleChangedPartOptions();

		return toDisposable(() => {
			this.enforcedPartOptions.splice(this.enforcedPartOptions.indexOf(options), 1);
			this.handleChangedPartOptions();
		});
	}