Merge from vscode 6268feb42ba4f2e2fa15484e88c9af60d254998c (#6530)

src/vs/workbench/workbench.web.api.ts

@@ -18,6 +18,11 @@ export interface IWorkbenchConstructionOptions {
 	 */
 	remoteAuthority: string;
 
+	/**
+	 * The connection token to send to the server.
+	 */
+	connectionToken?: string;
+
 	/**
 	 * Experimental: An endpoint to serve iframe content ("webview") from. This is required
 	 * to provide full security isolation from the workbench host.
@@ -64,4 +69,4 @@ function create(domElement: HTMLElement, options: IWorkbenchConstructionOptions)
 
 export {
 	create
-};
+};