_RenderChip should not create OpacityLayer without disposing. (#134708)

packages/flutter/lib/src/material/chip.dart

@@ -2034,6 +2034,8 @@ class _RenderChip extends RenderBox with SlottedContainerRenderObjectMixin<_Chip
     }
   }
 
+  final LayerHandle<OpacityLayer> _avatarOpacityLayerHandler = LayerHandle<OpacityLayer>();
+
   void _paintAvatar(PaintingContext context, Offset offset) {
     void paintWithOverlay(PaintingContext context, Offset offset) {
       context.paintChild(avatar!, _boxParentData(avatar!).offset + offset);
@@ -2041,13 +2043,15 @@ class _RenderChip extends RenderBox with SlottedContainerRenderObjectMixin<_Chip
     }
 
     if (!theme.showAvatar && avatarDrawerAnimation.isDismissed) {
+      _avatarOpacityLayerHandler.layer = null;
       return;
     }
     final Color disabledColor = _disabledColor;
     final int disabledColorAlpha = disabledColor.alpha;
     if (needsCompositing) {
-      context.pushLayer(OpacityLayer(alpha: disabledColorAlpha), paintWithOverlay, offset);
+       _avatarOpacityLayerHandler.layer = context.pushOpacity(offset, disabledColorAlpha, paintWithOverlay, oldLayer: _avatarOpacityLayerHandler.layer);
     } else {
+      _avatarOpacityLayerHandler.layer = null;
       if (disabledColorAlpha != 0xff) {
         context.canvas.saveLayer(
           _boxRect(avatar).shift(offset).inflate(20.0),
@@ -2086,6 +2090,12 @@ class _RenderChip extends RenderBox with SlottedContainerRenderObjectMixin<_Chip
     }
   }
 
+  @override
+  void dispose() {
+    _avatarOpacityLayerHandler.layer = null;
+    super.dispose();
+  }
+
   @override
   void paint(PaintingContext context, Offset offset) {
     _paintAvatar(context, offset);

packages/flutter/test/material/chip_test.dart

@@ -290,12 +290,7 @@ void main() {
     expect(labelStyle.overflow, textTheme.bodyLarge?.overflow);
     expect(labelStyle.textBaseline, textTheme.bodyLarge?.textBaseline);
     expect(labelStyle.wordSpacing, textTheme.bodyLarge?.wordSpacing);
-  },
-  // TODO(polina-c): remove after fixing
-  // https://github.com/flutter/flutter/issues/134394
-  leakTrackingTestConfig: const LeakTrackingTestConfig(
-    notDisposedAllowList: <String, int?>{'OpacityLayer': 2},
-  ));
+  });
 
   testWidgetsWithLeakTracking('M3 Chip defaults', (WidgetTester tester) async {
     late TextTheme textTheme;