Fix lint error due to private variable

src/browser/TimeBasedDebouncer.ts

@@ -24,7 +24,7 @@ export class TimeBasedDebouncer implements IRenderDebouncer {
 
   constructor(
     private _renderCallback: (start: number, end: number) => void,
-    private readonly debounceThresholdMS = RENDER_DEBOUNCE_THRESHOLD_MS
+    private readonly _debounceThresholdMS = RENDER_DEBOUNCE_THRESHOLD_MS
   ) {
   }
 
@@ -46,14 +46,14 @@ export class TimeBasedDebouncer implements IRenderDebouncer {
     // Only refresh if the time since last refresh is above a threshold, otherwise wait for
     // enough time to pass before refreshing again.
     const refreshRequestTime: number = Date.now();
-    if (refreshRequestTime - this._lastRefreshMs >= this.debounceThresholdMS) {
+    if (refreshRequestTime - this._lastRefreshMs >= this._debounceThresholdMS) {
       // Enough time has lapsed since the last refresh; refresh immediately
       this._lastRefreshMs = refreshRequestTime;
       this._innerRefresh();
     } else if (!this._additionalRefreshRequested) {
       // This is the first additional request throttled; set up trailing refresh
       const elapsed = refreshRequestTime - this._lastRefreshMs;
-      const waitPeriodBeforeTrailingRefresh = this.debounceThresholdMS - elapsed;
+      const waitPeriodBeforeTrailingRefresh = this._debounceThresholdMS - elapsed;
       this._additionalRefreshRequested = true;
 
       this._refreshTimeoutID = window.setTimeout(() => {