Merge from vscode a234f13c45b40a0929777cb440ee011b7549eed2 (#8911)

* Merge from vscode a234f13c45b40a0929777cb440ee011b7549eed2

* update distro

* fix layering

* update distro

* fix tests

src/vs/workbench/api/browser/mainThreadAuthentication.ts

@@ -0,0 +1,55 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { Disposable } from 'vs/base/common/lifecycle';
+import * as modes from 'vs/editor/common/modes';
+import { extHostNamedCustomer } from 'vs/workbench/api/common/extHostCustomers';
+import { IAuthenticationService } from 'vs/workbench/services/authentication/browser/authenticationService';
+import { ExtHostAuthenticationShape, ExtHostContext, IExtHostContext, MainContext, MainThreadAuthenticationShape } from '../common/extHost.protocol';
+
+export class MainThreadAuthenticationProvider {
+	constructor(
+		private readonly _proxy: ExtHostAuthenticationShape,
+		public readonly id: string
+	) { }
+
+	getSessions(): Promise<ReadonlyArray<modes.Session>> {
+		return this._proxy.$getSessions(this.id);
+	}
+
+	login(): Promise<modes.Session> {
+		return this._proxy.$login(this.id);
+	}
+
+	logout(accountId: string): Promise<void> {
+		return this._proxy.$logout(this.id, accountId);
+	}
+}
+
+@extHostNamedCustomer(MainContext.MainThreadAuthentication)
+export class MainThreadAuthentication extends Disposable implements MainThreadAuthenticationShape {
+	private readonly _proxy: ExtHostAuthenticationShape;
+
+	constructor(
+		extHostContext: IExtHostContext,
+		@IAuthenticationService private readonly authenticationService: IAuthenticationService,
+	) {
+		super();
+		this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostAuthentication);
+	}
+
+	$registerAuthenticationProvider(id: string): void {
+		const provider = new MainThreadAuthenticationProvider(this._proxy, id);
+		this.authenticationService.registerAuthenticationProvider(id, provider);
+	}
+
+	$unregisterAuthenticationProvider(id: string): void {
+		this.authenticationService.unregisterAuthenticationProvider(id);
+	}
+
+	$onDidChangeSessions(id: string) {
+		this.authenticationService.sessionsUpdate(id);
+	}
+}