shared process - move all settings sync related services to sandbox

//cc @sandy081

src/vs/workbench/services/userDataSync/electron-sandbox/userDataAutoSyncService.ts

@@ -0,0 +1,39 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { IUserDataAutoSyncService, UserDataSyncError } from 'vs/platform/userDataSync/common/userDataSync';
+import { ISharedProcessService } from 'vs/platform/ipc/electron-sandbox/sharedProcessService';
+import { IChannel } from 'vs/base/parts/ipc/common/ipc';
+import { Event } from 'vs/base/common/event';
+import { registerSingleton } from 'vs/platform/instantiation/common/extensions';
+
+class UserDataAutoSyncService implements IUserDataAutoSyncService {
+
+	declare readonly _serviceBrand: undefined;
+
+	private readonly channel: IChannel;
+	get onError(): Event<UserDataSyncError> { return Event.map(this.channel.listen<Error>('onError'), e => UserDataSyncError.toUserDataSyncError(e)); }
+
+	constructor(
+		@ISharedProcessService sharedProcessService: ISharedProcessService,
+	) {
+		this.channel = sharedProcessService.getChannel('userDataAutoSync');
+	}
+
+	triggerSync(sources: string[], hasToLimitSync: boolean, disableCache: boolean): Promise<void> {
+		return this.channel.call('triggerSync', [sources, hasToLimitSync, disableCache]);
+	}
+
+	turnOn(): Promise<void> {
+		return this.channel.call('turnOn');
+	}
+
+	turnOff(everywhere: boolean): Promise<void> {
+		return this.channel.call('turnOff', [everywhere]);
+	}
+
+}
+
+registerSingleton(IUserDataAutoSyncService, UserDataAutoSyncService);