src/vs/editor/browser/editorDom.ts/GlobalEditorMouseMoveMonitor/constructor
class GlobalEditorMouseMoveMonitor:	constructor(editorViewDomNode: HTMLElement) {
		super();
		this._editorViewDomNode = editorViewDomNode;
		this._globalMouseMoveMonitor = this._register(new GlobalMouseMoveMonitor<EditorMouseEvent>());
		this._keydownListener = null;
	}