diff --git a/src/vs/base/parts/composite/browser/compositeDnd.ts b/src/vs/base/parts/composite/browser/compositeDnd.ts
new file mode 100644
index 0000000000000000000000000000000000000000..4902bd425faac94531a10d608fd8eaf8d61222fc
--- /dev/null
+++ b/src/vs/base/parts/composite/browser/compositeDnd.ts
@@ -0,0 +1,23 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { IDragAndDropData } from 'vs/base/browser/dnd';
+
+export class CompositeDragAndDropData implements IDragAndDropData {
+	constructor(private type: 'view' | 'composite', private id: string) { }
+	update(dataTransfer: DataTransfer): void {
+		// no-op
+	}
+	getData(): {
+		type: 'view' | 'composite';
+		id: string;
+	} {
+		return { type: this.type, id: this.id };
+	}
+}
+
+export interface ICompositeDragAndDrop {
+	drop(data: IDragAndDropData, target: string | undefined, originalEvent: DragEvent): void;
+}
diff --git a/src/vs/workbench/browser/parts/compositeBar.ts b/src/vs/workbench/browser/parts/compositeBar.ts
index 440e05be22feed24dd20212bebff59b8bc585c49..45f9c1f9ec0602af3c35bcb93f5a3b3c83b2dcc6 100644
--- a/src/vs/workbench/browser/parts/compositeBar.ts
+++ b/src/vs/workbench/browser/parts/compositeBar.ts
@@ -21,9 +21,9 @@ import { LocalSelectionTransfer } from 'vs/workbench/browser/dnd';
 import { ITheme } from 'vs/platform/theme/common/themeService';
 import { Emitter } from 'vs/base/common/event';
 import { DraggedViewIdentifier } from 'vs/workbench/browser/parts/views/viewPaneContainer';
-import { IDragAndDropData } from 'vs/base/browser/dnd';
 import { Registry } from 'vs/platform/registry/common/platform';
 import { IViewContainersRegistry, Extensions as ViewContainerExtensions, ViewContainerLocation, IViewDescriptorService } from 'vs/workbench/common/views';
+import { ICompositeDragAndDrop, CompositeDragAndDropData } from 'vs/base/parts/composite/browser/compositeDnd';
 
 export interface ICompositeBarItem {
 	id: string;
@@ -33,23 +33,6 @@ export interface ICompositeBarItem {
 	visible: boolean;
 }
 
-export class CompositeDragAndDropData implements IDragAndDropData {
-	constructor(
-		private type: 'view' | 'composite',
-		private id: string
-	) { }
-	update(dataTransfer: DataTransfer): void {
-		// no-op
-	}
-	getData(): { type: 'view' | 'composite', id: string } {
-		return { type: this.type, id: this.id };
-	}
-}
-
-export interface ICompositeDragAndDrop {
-	drop(data: IDragAndDropData, target: string | undefined, originalEvent: DragEvent): void;
-}
-
 export class CompositeDragAndDrop implements ICompositeDragAndDrop {
 
 	constructor(
diff --git a/src/vs/workbench/browser/parts/compositeBarActions.ts b/src/vs/workbench/browser/parts/compositeBarActions.ts
index bc73260d6c804118906ec8ee031b0f45e13d22e0..abe02a6aa012dca6e2d165fede8bc57d55ec4811 100644
--- a/src/vs/workbench/browser/parts/compositeBarActions.ts
+++ b/src/vs/workbench/browser/parts/compositeBarActions.ts
@@ -20,8 +20,8 @@ import { IKeybindingService } from 'vs/platform/keybinding/common/keybinding';
 import { Emitter } from 'vs/base/common/event';
 import { DragAndDropObserver, LocalSelectionTransfer } from 'vs/workbench/browser/dnd';
 import { Color } from 'vs/base/common/color';
-import { ICompositeDragAndDrop, CompositeDragAndDropData } from 'vs/workbench/browser/parts/compositeBar';
 import { DraggedViewIdentifier } from 'vs/workbench/browser/parts/views/viewPaneContainer';
+import { ICompositeDragAndDrop, CompositeDragAndDropData } from 'vs/base/parts/composite/browser/compositeDnd';
 
 export interface ICompositeActivity {
 	badge: IBadge;