src/vs/platform/userDataSync/common/userDataSyncResourceEnablementService.ts/UserDataSyncResourceEnablementService/onDidStorageChange
class UserDataSyncResourceEnablementService:	private onDidStorageChange(storageChangeEvent: IStorageValueChangeEvent): void {
		if (storageChangeEvent.scope === StorageScope.GLOBAL) {
			const resourceKey = ALL_SYNC_RESOURCES.filter(resourceKey => getEnablementKey(resourceKey) === storageChangeEvent.key)[0];
			if (resourceKey) {
				this._onDidChangeResourceEnablement.fire([resourceKey, this.isResourceEnabled(resourceKey)]);
				return;
			}
		}
	}