Add a throttled delayer to avoid reacting to display changes too often (#282977)

Add a throttled delayer to avoid reacting to display changes too often (closes #174041)

Author: alexdima

src/vs/workbench/contrib/codeEditor/electron-browser/displayChangeRemeasureFonts.ts

@@ -3,6 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+import { ThrottledDelayer } from '../../../../base/common/async.js';
 import { Disposable } from '../../../../base/common/lifecycle.js';
 import { FontMeasurements } from '../../../../editor/browser/config/fontMeasurements.js';
 import { INativeHostService } from '../../../../platform/native/common/native.js';
@@ -12,13 +13,18 @@ import { LifecyclePhase } from '../../../services/lifecycle/common/lifecycle.js'
 
 class DisplayChangeRemeasureFonts extends Disposable implements IWorkbenchContribution {
 
+	private readonly _delayer = this._register(new ThrottledDelayer(2000));
+
 	constructor(
 		@INativeHostService nativeHostService: INativeHostService
 	) {
 		super();
 
 		this._register(nativeHostService.onDidChangeDisplay(() => {
-			FontMeasurements.clearAllFontInfos();
+			this._delayer.trigger(() => {
+				FontMeasurements.clearAllFontInfos();
+				return Promise.resolve();
+			});
 		}));
 	}
 }