src/vs/platform/userDataSync/common/extensionsSync.ts/storeExtensionStorageState
export function storeExtensionStorageState(publisher: string, name: string, extensionState: IStringDictionary<any>, storageService: IStorageService): void {
	storageService.store(getExtensionId(publisher, name) /* use the same id used in extension host */, JSON.stringify(extensionState), StorageScope.GLOBAL, StorageTarget.MACHINE);
}