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This reverts commit c567f8439b
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@ -1764,16 +1764,11 @@ class OpacityLayer extends OffsetLayer {
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@override
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void addToScene(ui.SceneBuilder builder) {
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assert(alpha != null);
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// Don't add this layer if there's no child.
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bool enabled = firstChild != null;
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bool enabled = firstChild != null; // don't add this layer if there's no child
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if (!enabled) {
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// Ensure the engineLayer is disposed.
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engineLayer = null;
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// TODO(dnfield): Remove this if/when we can fix https://github.com/flutter/flutter/issues/90004
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return;
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}
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assert(() {
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enabled = enabled && !debugDisableOpacityLayers;
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return true;
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@ -637,21 +637,6 @@ void main() {
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expect(builder.addedPicture, true);
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expect(layer.engineLayer, isA<FakeOpacityEngineLayer>());
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});
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test('OpacityLayer dispose its engineLayer if there are no children', () {
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final OpacityLayer layer = OpacityLayer(alpha: 128);
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final FakeSceneBuilder builder = FakeSceneBuilder();
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layer.addToScene(builder);
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expect(layer.engineLayer, null);
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layer.append(PictureLayer(Rect.largest)..picture = FakePicture());
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layer.addToScene(builder);
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expect(layer.engineLayer, isA<FakeOpacityEngineLayer>());
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layer.removeAllChildren();
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layer.addToScene(builder);
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expect(layer.engineLayer, null);
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});
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}
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class FakeEngineLayer extends Fake implements EngineLayer {
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