VSCode merge (#4610)

* Merge from vscode e388c734f30757875976c7e326d6cfeee77710de

* fix yarn lcoks

* remove small issue

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

@@ -0,0 +1,30 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { extHostNamedCustomer } from 'vs/workbench/api/common/extHostCustomers';
+import { MainContext, MainThreadClipboardShape } from '../common/extHost.protocol';
+import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
+
+@extHostNamedCustomer(MainContext.MainThreadClipboard)
+export class MainThreadCommands implements MainThreadClipboardShape {
+
+	constructor(
+		_context: any,
+		@IClipboardService private readonly _clipboardService: IClipboardService,
+	) { }
+
+	dispose(): void {
+		// nothing
+	}
+
+	$readText(): Promise<string> {
+		return Promise.resolve(this._clipboardService.readText());
+	}
+
+	$writeText(value: string): Promise<void> {
+		this._clipboardService.writeText(value);
+		return Promise.resolve();
+	}
+}