src/vs/platform/extensionManagement/common/extensionManagementIpc.ts/ExtensionManagementChannelClient/updateMetadata
class ExtensionManagementChannelClient:	updateMetadata(local: ILocalExtension, metadata: IGalleryMetadata): Promise<ILocalExtension> {
		return Promise.resolve(this.channel.call<ILocalExtension>('updateMetadata', [local, metadata]))
			.then(extension => transformIncomingExtension(extension, null));
	}