src/vs/workbench/contrib/preferences/browser/keybindingsEditorContribution.ts/DefineKeybindingController/_disposeKeybindingDecorationRenderer
class DefineKeybindingController:	private _disposeKeybindingDecorationRenderer(): void {
		if (this._keybindingDecorationRenderer) {
			this._keybindingDecorationRenderer.dispose();
			this._keybindingDecorationRenderer = undefined;
		}
	}