Reverts "Update image_filter_test and color_filter_test.dart for Material 3 (#158985)" (#159437)

<!-- start_original_pr_link -->
Reverts: flutter/flutter#158985
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: QuncCccccc
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: to unblock tree
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: TahaTesser
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {QuncCccccc}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Updated unit tests for `ColorFiltered` and `ImageFiltered` to have M2
and M3 versions.

More info in #139076

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [ ] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [ ] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

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Co-authored-by: auto-submit[bot] <[email protected]>

Author: auto-submit[bot]

packages/flutter/test/widgets/color_filter_test.dart

@@ -30,45 +30,8 @@ void main() {
     );
   });
 
-  testWidgets('Material2 - Color filter - sepia', (WidgetTester tester) async {
-    const ColorFilter sepia = ColorFilter.matrix(<double>[
-      0.39,  0.769, 0.189, 0, 0, //
-      0.349, 0.686, 0.168, 0, 0, //
-      0.272, 0.534, 0.131, 0, 0, //
-      0,     0,     0,     1, 0, //
-    ]);
-    await tester.pumpWidget(
-      RepaintBoundary(
-        child: ColorFiltered(
-          colorFilter: sepia,
-          child: MaterialApp(
-            debugShowCheckedModeBanner: false, // https://github.com/flutter/flutter/issues/143616
-            title: 'Flutter Demo',
-            theme: ThemeData(primarySwatch: Colors.blue, useMaterial3: false),
-            home: Scaffold(
-              appBar: AppBar(
-                title: const Text('Sepia ColorFilter Test'),
-              ),
-              body: const Center(
-                child:Text('Hooray!'),
-              ),
-              floatingActionButton: FloatingActionButton(
-                onPressed: () { },
-                tooltip: 'Increment',
-                child: const Icon(Icons.add),
-              ),
-            ),
-          ),
-        ),
-      ),
-    );
-    await expectLater(
-      find.byType(ColorFiltered),
-      matchesGoldenFile('color_filter_sepia_m2.png'),
-    );
-  }, skip: impellerEnabled); // https://github.com/flutter/flutter/issues/143616
-
   testWidgets('Color filter - sepia', (WidgetTester tester) async {
+
     const ColorFilter sepia = ColorFilter.matrix(<double>[
       0.39,  0.769, 0.189, 0, 0, //
       0.349, 0.686, 0.168, 0, 0, //
@@ -82,7 +45,7 @@ void main() {
           child: MaterialApp(
             debugShowCheckedModeBanner: false, // https://github.com/flutter/flutter/issues/143616
             title: 'Flutter Demo',
-            theme: ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue)),
+            theme: ThemeData(primarySwatch: Colors.blue, useMaterial3: false),
             home: Scaffold(
               appBar: AppBar(
                 title: const Text('Sepia ColorFilter Test'),
@@ -102,7 +65,7 @@ void main() {
     );
     await expectLater(
       find.byType(ColorFiltered),
-      matchesGoldenFile('color_filter_sepia_m3.png'),
+      matchesGoldenFile('color_filter_sepia.png'),
     );
   }, skip: impellerEnabled); // https://github.com/flutter/flutter/issues/143616
 

packages/flutter/test/widgets/image_filter_test.dart

@@ -82,58 +82,20 @@ void main() {
     );
   }, skip: kIsWeb); // https://github.com/flutter/flutter/issues/101874
 
-  testWidgets('Material2 - Image filter - matrix', (WidgetTester tester) async {
-    final ImageFilter matrix = ImageFilter.matrix(Float64List.fromList(<double>[
-      0.5, 0.0, 0.0, 0.0,
-      0.0, 0.5, 0.0, 0.0,
-      0.0, 0.0, 1.0, 0.0,
-      0.0, 0.0, 0.0, 1.0,
-    ]));
-    await tester.pumpWidget(
-      RepaintBoundary(
-        child: ImageFiltered(
-          imageFilter: matrix,
-          child: MaterialApp(
-            title: 'Flutter Demo',
-            theme: ThemeData(useMaterial3: false, primarySwatch: Colors.blue),
-            debugShowCheckedModeBanner: false, // https://github.com/flutter/flutter/issues/143616
-            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_m2.png'),
-    );
-  });
-
   testWidgets('Image filter - matrix', (WidgetTester tester) async {
     final ImageFilter matrix = ImageFilter.matrix(Float64List.fromList(<double>[
-      0.5, 0.0, 0.0, 0.0,
-      0.0, 0.5, 0.0, 0.0,
-      0.0, 0.0, 1.0, 0.0,
-      0.0, 0.0, 0.0, 1.0,
+      0.5, 0.0, 0.0, 0.0, //
+      0.0, 0.5, 0.0, 0.0, //
+      0.0, 0.0, 1.0, 0.0, //
+      0.0, 0.0, 0.0, 1.0, //
     ]));
     await tester.pumpWidget(
       RepaintBoundary(
         child: ImageFiltered(
           imageFilter: matrix,
           child: MaterialApp(
             title: 'Flutter Demo',
-            theme: ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue)),
+            theme: ThemeData(useMaterial3: false, primarySwatch: Colors.blue),
             debugShowCheckedModeBanner: false, // https://github.com/flutter/flutter/issues/143616
             home: Scaffold(
               appBar: AppBar(
@@ -154,46 +116,7 @@ void main() {
     );
     await expectLater(
       find.byType(ImageFiltered),
-      matchesGoldenFile('image_filter_matrix_m3.png'),
-    );
-  });
-
-  testWidgets('Material2 - Image filter - matrix with offset', (WidgetTester tester) async {
-    final Matrix4 matrix = Matrix4.rotationZ(pi / 18);
-    final ImageFilter matrixFilter = ImageFilter.matrix(matrix.storage);
-    final Key key = GlobalKey();
-    await tester.pumpWidget(
-      RepaintBoundary(
-        key: key,
-        child: Transform.translate(
-          offset: const Offset(50, 50),
-          child: ImageFiltered(
-            imageFilter: matrixFilter,
-            child: MaterialApp(
-              title: 'Flutter Demo',
-              theme: ThemeData(useMaterial3: false, primarySwatch: Colors.blue),
-              debugShowCheckedModeBanner: false, // https://github.com/flutter/flutter/issues/143616
-              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.byKey(key),
-      matchesGoldenFile('image_filter_matrix_offset_m2.png'),
+      matchesGoldenFile('image_filter_matrix.png'),
     );
   });
 
@@ -210,7 +133,7 @@ void main() {
             imageFilter: matrixFilter,
             child: MaterialApp(
               title: 'Flutter Demo',
-              theme: ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue)),
+              theme: ThemeData(useMaterial3: false, primarySwatch: Colors.blue),
               debugShowCheckedModeBanner: false, // https://github.com/flutter/flutter/issues/143616
               home: Scaffold(
                 appBar: AppBar(
@@ -232,7 +155,7 @@ void main() {
     );
     await expectLater(
       find.byKey(key),
-      matchesGoldenFile('image_filter_matrix_offset_m3.png'),
+      matchesGoldenFile('image_filter_matrix_offset.png'),
     );
   });