src/vs/workbench/services/extensionManagement/common/webExtensionsScannerService.ts/WebExtensionsScannerService/getResourceAccessQueue
class WebExtensionsScannerService:	private getResourceAccessQueue(file: URI): Queue<IWebExtension[]> {
		let resourceQueue = this.resourcesAccessQueueMap.get(file);
		if (!resourceQueue) {
			resourceQueue = new Queue<IWebExtension[]>();
			this.resourcesAccessQueueMap.set(file, resourceQueue);
		}
		return resourceQueue;
	}