src/vs/editor/browser/viewParts/contentWidgets/contentWidgets.ts/Widget/onConfigurationChanged
class Widget:	public onConfigurationChanged(e: viewEvents.ViewConfigurationChangedEvent): void {
		const options = this._context.configuration.options;
		this._lineHeight = options.get(EditorOption.lineHeight);
		if (e.hasChanged(EditorOption.layoutInfo)) {
			const layoutInfo = options.get(EditorOption.layoutInfo);
			this._contentLeft = layoutInfo.contentLeft;
			this._contentWidth = layoutInfo.contentWidth;
			this._maxWidth = this._getMaxWidth();
		}
	}