Introduce IRenderDebouncer interface, unifying RenderDebouncer and TimeBasedDebouncer types

src/browser/TimeBasedDebouncer.ts

@@ -5,12 +5,12 @@
 
 const RENDER_DEBOUNCE_THRESHOLD_MS = 1000; // 1 Second
 
-import { IDisposable } from 'common/Types';
+import { IRenderDebouncer } from 'browser/Types';
 
 /**
  * Debounces calls to update screen readers to update at most once per second.
  */
-export class TimeBasedDebouncer implements IDisposable {
+export class TimeBasedDebouncer implements IRenderDebouncer {
   private _rowStart: number | undefined;
   private _rowEnd: number | undefined;
   private _rowCount: number | undefined;