Introduce mouse service

src/TestUtils.test.ts

@@ -12,7 +12,7 @@ import * as Browser from 'common/Platform';
 import { IDisposable, IMarker, IEvent, ISelectionPosition } from 'xterm';
 import { Terminal } from './Terminal';
 import { AttributeData } from 'common/buffer/AttributeData';
-import { IColorManager, IColorSet, IMouseHelper } from 'browser/Types';
+import { IColorManager, IColorSet } from 'browser/Types';
 import { IOptionsService } from 'common/services/Services';
 import { EventEmitter } from 'common/EventEmitter';
 
@@ -122,7 +122,6 @@ export class MockTerminal implements ITerminal {
     throw new Error('Method not implemented.');
   }
   bracketedPasteMode: boolean;
-  mouseHelper: IMouseHelper;
   renderer: IRenderer;
   linkifier: ILinkifier;
   isFocused: boolean;