Revert "Use the new pushImageFilter offset parameter to fix the transform of the children (#113673)" (#115861)

This reverts commit 91aeda7.

Author: jonahwilliams

packages/flutter/lib/src/rendering/layer.dart

@@ -1816,14 +1816,13 @@ class ColorFilterLayer extends ContainerLayer {
 }
 
 /// A composite layer that applies an [ImageFilter] to its children.
-class ImageFilterLayer extends OffsetLayer {
+class ImageFilterLayer extends ContainerLayer {
   /// Creates a layer that applies an [ImageFilter] to its children.
   ///
   /// The [imageFilter] property must be non-null before the compositing phase
   /// of the pipeline.
   ImageFilterLayer({
     ui.ImageFilter? imageFilter,
-    super.offset,
   }) : _imageFilter = imageFilter;
 
   /// The image filter to apply to children.
@@ -1845,7 +1844,6 @@ class ImageFilterLayer extends OffsetLayer {
     assert(imageFilter != null);
     engineLayer = builder.pushImageFilter(
       imageFilter!,
-      offset: offset,
       oldLayer: _engineLayer as ui.ImageFilterEngineLayer?,
     );
     addChildrenToScene(builder);

packages/flutter/lib/src/widgets/image_filter.dart

@@ -105,13 +105,12 @@ class _ImageFilterRenderObject extends RenderProxyBox {
     }
 
     if (layer == null) {
-      layer = ImageFilterLayer(imageFilter: imageFilter, offset: offset);
+      layer = ImageFilterLayer(imageFilter: imageFilter);
     } else {
       final ImageFilterLayer filterLayer = layer! as ImageFilterLayer;
       filterLayer.imageFilter = imageFilter;
-      filterLayer.offset = offset;
     }
-    context.pushLayer(layer!, super.paint, Offset.zero);
+    context.pushLayer(layer!, super.paint, offset);
     assert(() {
       layer!.debugCreator = debugCreator;
       return true;

packages/flutter/test/widgets/image_filter_test.dart

@@ -6,7 +6,6 @@
 // machines.
 @Tags(<String>['reduced-test-set'])
 
-import 'dart:math';
 import 'dart:ui';
 
 import 'package:flutter/foundation.dart';
@@ -30,24 +29,6 @@ void main() {
     );
   });
 
-  testWidgets('Image filter - blur with offset', (WidgetTester tester) async {
-    await tester.pumpWidget(
-      RepaintBoundary(
-        child: Transform.translate(
-          offset: const Offset(50, 50),
-          child: ImageFiltered(
-            imageFilter: ImageFilter.blur(sigmaX: 3.0, sigmaY: 3.0),
-            child: const Placeholder(),
-          ),
-        ),
-      ),
-    );
-    await expectLater(
-      find.byType(ImageFiltered),
-      matchesGoldenFile('image_filter_blur_offset.png'),
-    );
-  });
-
   testWidgets('Image filter - dilate', (WidgetTester tester) async {
     await tester.pumpWidget(
       RepaintBoundary(
@@ -116,42 +97,6 @@ void main() {
     );
   });
 
-  testWidgets('Image filter - matrix with offset', (WidgetTester tester) async {
-    final Matrix4 matrix = Matrix4.rotationZ(pi / 18);
-    final ImageFilter matrixFilter = ImageFilter.matrix(matrix.storage);
-    await tester.pumpWidget(
-      RepaintBoundary(
-        child: Transform.translate(
-          offset: const Offset(50, 50),
-          child: ImageFiltered(
-            imageFilter: matrixFilter,
-            child: MaterialApp(
-              title: 'Flutter Demo',
-              theme: ThemeData(primarySwatch: Colors.blue),
-              home: Scaffold(
-                appBar: AppBar(
-                  title: const Text('Matrix ImageFilter Test'),
-                ),
-                body: const Center(
-                  child:Text('Hooray!'),
-                ),
-                floatingActionButton: FloatingActionButton(
-                  onPressed: () { },
-                  tooltip: 'Increment',
-                  child: const Icon(Icons.add),
-                ),
-              ),
-            ),
-          ),
-        ),
-      ),
-    );
-    await expectLater(
-      find.byType(ImageFiltered),
-      matchesGoldenFile('image_filter_matrix_offset.png'),
-    );
-  });
-
   testWidgets('Image filter - reuses its layer', (WidgetTester tester) async {
     Future<void> pumpWithSigma(double sigma) async {
       await tester.pumpWidget(