src/vs/workbench/api/common/extHostDocumentContentProviders.ts/ExtHostDocumentContentProvider/constructor
class ExtHostDocumentContentProvider:	constructor(
		mainContext: IMainContext,
		private readonly _documentsAndEditors: ExtHostDocumentsAndEditors,
		private readonly _logService: ILogService,
	) {
		this._proxy = mainContext.getProxy(MainContext.MainThreadDocumentContentProviders);
	}