Move non-state methods into MouseService

Fixes #5756

src/common/TestUtils.test.ts

@@ -71,17 +71,14 @@ export class MockMouseStateService implements IMouseStateService {
   public areMouseEventsActive: boolean = false;
   public activeEncoding: string = '';
   public activeProtocol: string = '';
+  public isDefaultEncoding: boolean = true;
+  public isPixelEncoding: boolean = false;
   public addEncoding(name: string): void { }
   public addProtocol(name: string): void { }
   public reset(): void { }
-  public triggerMouseEvent(event: ICoreMouseEvent): boolean { return false; }
   public onProtocolChange: IEvent<CoreMouseEventType> = new Emitter<CoreMouseEventType>().event;
-  public explainEvents(events: CoreMouseEventType): { [event: string]: boolean } {
-    throw new Error('Method not implemented.');
-  }
-  public consumeWheelEvent(ev: WheelEvent, cellHeight: number, dpr: number): number {
-    return 1;
-  }
+  public restrictMouseEvent(event: ICoreMouseEvent): boolean { return true; }
+  public encodeMouseEvent(event: ICoreMouseEvent): string { return ''; }
   public setCustomWheelEventHandler(customWheelEventHandler: ((event: WheelEvent) => boolean) | undefined): void { }
   public allowCustomWheelEvent(ev: WheelEvent): boolean { return true; }
 }