Fixes flutter#166020

This test is invalid because the renderer assumes metal/vulkan will
always have decal support (they do, its in base 1.0 for both). DIsabling
decal causes this test to attempt to use a GLES only shader that is not
available on the metal backend.

Fixes: flutter#166326

The issue lies only in the `paint` method, and there are no problems
with `tester.getTopLeft`. Therefore, I used a golden file test.

## 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].
- [x] 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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…#166775)

flutter/packages@267ac7b...2405f6a

2025-04-08 [email protected] [pigeon] swift equality methods
(flutter/packages#8971)

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… is destroyed. (flutter#166725)

Fixes flutter#166410

keep the potentially shutdown context alive until the last texture is
reclaimed, to work around issues where pending UI tasks aren't flushed
during platform view shutdown.

…6776)

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2025-04-08 [email protected] Small fix in Bidi API
2025-04-08 [email protected] Delete the dead code in
GrGeometryProcessor.cpp
2025-04-08 [email protected] [graphite] Support lifting expressions to
vertex shader

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Currently when using a `CustomScrollView`, screen readers cannot list or
move focus to elements that are outside the current Viewport and cache
extent because we do not create semantic nodes for these elements.

This change introduces `SliverEnsureSemantics` which ensures its sliver
child is included in the semantics tree, whether or not it is currently
visible on the screen or within the cache extent. This way screen
readers are aware the elements are there and can navigate to them /
create accessibility traversal menus with this information.
* Under the hood a new flag has been added to `RenderSliver` called
`ensureSemantics`. `RenderViewportBase` uses this in its
`visitChildrenForSemantics` to ensure a sliver is visited when creating
the semantics tree. Previously a sliver was not visited if it was not
visible or within the cache extent. `RenderViewportBase` also uses this
in `describeSemanticsClip` and `describeApproximatePaintClip` to ensure
a sliver child that wants to "ensure semantics" is not clipped out if it
is not currently visible in the viewport or outside the cache extent.
* `RenderSliverMultiBoxAdaptor.semanticBounds` now leverages its first
child as an anchor for assistive technologies to be able to reach it if
the Sliver is a child of `SliverEnsureSemantics`. If not it will still
be dropped from the semantics tree.
* `RenderProxySliver` now considers child overrides of `semanticBounds`.

On the engine side we move from using a joystick method to scroll with
`SemanticsAction.scrollUp` and `SemanticsAction.scrollDown` to using
`SemanticsAction.scrollToOffset` completely letting the browser drive
the scrolling with its current dom scroll position "scrollTop" or
"scrollLeft". This is possible by calculating the total quantity of
content under the scrollable and sizing the scroll element based on
that.

<details open><summary>Code sample</summary>

```dart
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';

/// Flutter code sample for [SliverEnsureSemantics].

void main() => runApp(const SliverEnsureSemanticsExampleApp());

class SliverEnsureSemanticsExampleApp extends StatelessWidget {
  const SliverEnsureSemanticsExampleApp({super.key});

  @OverRide
  Widget build(BuildContext context) {
    return const MaterialApp(home: SliverEnsureSemanticsExample());
  }
}

class SliverEnsureSemanticsExample extends StatefulWidget {
  const SliverEnsureSemanticsExample({super.key});

  @OverRide
  State<SliverEnsureSemanticsExample> createState() =>
      _SliverEnsureSemanticsExampleState();
}

class _SliverEnsureSemanticsExampleState
    extends State<SliverEnsureSemanticsExample> {
  @OverRide
  Widget build(BuildContext context) {
    final ThemeData theme = Theme.of(context);
    return Scaffold(
      appBar: AppBar(
        backgroundColor: theme.colorScheme.inversePrimary,
        title: const Text('SliverEnsureSemantics Demo'),
      ),
      body: Center(
        child: CustomScrollView(
          semanticChildCount: 106,
          slivers: <Widget>[
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 0,
                  child: Card(
                    child: Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: <Widget>[
                          Semantics(
                            header: true,
                            headingLevel: 3,
                            child: Text(
                              'Steps to reproduce',
                              style: theme.textTheme.headlineSmall,
                            ),
                          ),
                          const Text('Issue description'),
                          Semantics(
                            header: true,
                            headingLevel: 3,
                            child: Text(
                              'Expected Results',
                              style: theme.textTheme.headlineSmall,
                            ),
                          ),
                          Semantics(
                            header: true,
                            headingLevel: 3,
                            child: Text(
                              'Actual Results',
                              style: theme.textTheme.headlineSmall,
                            ),
                          ),
                          Semantics(
                            header: true,
                            headingLevel: 3,
                            child: Text(
                              'Code Sample',
                              style: theme.textTheme.headlineSmall,
                            ),
                          ),
                          Semantics(
                            header: true,
                            headingLevel: 3,
                            child: Text(
                              'Screenshots',
                              style: theme.textTheme.headlineSmall,
                            ),
                          ),
                          Semantics(
                            header: true,
                            headingLevel: 3,
                            child: Text(
                              'Logs',
                              style: theme.textTheme.headlineSmall,
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                ),
              ),
            ),
            SliverFixedExtentList(
              itemExtent: 44.0,
              delegate: SliverChildBuilderDelegate(
                (BuildContext context, int index) {
                  return Card(
                    child: Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Text('Item $index'),
                    ),
                  );
                },
                childCount: 50,
                semanticIndexOffset: 1,
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 51,
                  child: Card(
                    child: Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Semantics(
                        header: true,
                        child: const Text('Footer 1'),
                      ),
                    ),
                  ),
                ),
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 52,
                  child: Card(
                    child: Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Semantics(
                        header: true,
                        child: const Text('Footer 2'),
                      ),
                    ),
                  ),
                ),
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 53,
                  child: Semantics(link: true, child: const Text('Link flutter#1')),
                ),
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 54,
                  child: OverflowBar(
                    children: <Widget>[
                      TextButton(
                        onPressed: () {},
                        child: const Text('Button 1'),
                      ),
                      TextButton(
                        onPressed: () {},
                        child: const Text('Button 2'),
                      ),
                    ],
                  ),
                ),
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 55,
                  child: Semantics(link: true, child: const Text('Link flutter#2')),
                ),
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverSemanticsList(
                sliver: SliverFixedExtentList(
                  itemExtent: 44.0,
                  delegate: SliverChildBuilderDelegate(
                    (BuildContext context, int index) {
                      return Semantics(
                        role: SemanticsRole.listItem,
                        child: Card(
                          child: Padding(
                            padding: const EdgeInsets.all(8.0),
                            child: Text('Second List Item $index'),
                          ),
                        ),
                      );
                    },
                    childCount: 50,
                    semanticIndexOffset: 56,
                  ),
                ),
              ),
            ),
            SliverEnsureSemantics(
              sliver: SliverToBoxAdapter(
                child: IndexedSemantics(
                  index: 107,
                  child: Semantics(link: true, child: const Text('Link flutter#3')),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

// A sliver that assigns the role of SemanticsRole.list to its sliver child.
class SliverSemanticsList extends SingleChildRenderObjectWidget {
  const SliverSemanticsList({super.key, required Widget sliver})
    : super(child: sliver);

  @OverRide
  RenderSliverSemanticsList createRenderObject(BuildContext context) =>
      RenderSliverSemanticsList();
}

class RenderSliverSemanticsList extends RenderProxySliver {
  @OverRide
  void describeSemanticsConfiguration(SemanticsConfiguration config) {
    super.describeSemanticsConfiguration(config);
    config.role = SemanticsRole.list;
  }
}
```
</details>

Fixes: flutter#160217

## 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.
- [x] 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].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

---------

Co-authored-by: Renzo Olivares <[email protected]>

Fixes flutter#143616

Maybe. Lets see if its stable.

Update: I've run this a few times and it seems stable.

Fixes flutter#165205

Our users expect image shader matrices to be converted to 3x3

1. Calculate the hash in only two places: `content_aware_hash.{ps1|sh}`
2. Call this from the workflow
3. Eventually call this from `update_engine_version.{ps1|sh}`

 The files of import:
* `DEPS`: tracks third party dependencies related to building the engine
* `engine`: all the code in the engine folder
* `bin/internal/content_aware_hash.ps1`: script for calculating the hash
on windows
* `bin/internal/content_aware_hash.sh`: script for calculating the hash
on mac/linux
* `.github/workflows/content-aware-hash.yml`: github action for CI/CD
hashing

Tested on windows and mac:

```shell
PS C:\src\flutter> C:\src\flutter\bin\internal\content_aware_hash.ps1
c24231e276e0719738e175e0622e040ad21a7012
```

```shell
❯ ~/src/flutter/bin/internal/content_aware_hash.sh
c24231e276e0719738e175e0622e040ad21a7012
```

…)" (flutter#166864)

<!-- start_original_pr_link -->
Reverts: flutter#166717
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: matanlurey
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Broke tree on
[postsubmit](https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8718108088961866849/+/u/test:_run_suite_safari-dart2js-canvaskit-engine/stdout)
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: jtmcdole
<!-- end_original_pr_author -->

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

<!-- start_revert_body -->
This change reverts the following previous change:
1. Calculate the hash in only two places: `content_aware_hash.{ps1|sh}`
2. Call this from the workflow
3. Eventually call this from `update_engine_version.{ps1|sh}`

 The files of import:
* `DEPS`: tracks third party dependencies related to building the engine
* `engine`: all the code in the engine folder
* `bin/internal/content_aware_hash.ps1`: script for calculating the hash
on windows
* `bin/internal/content_aware_hash.sh`: script for calculating the hash
on mac/linux
* `.github/workflows/content-aware-hash.yml`: github action for CI/CD
hashing

Tested on windows and mac:

```shell
PS C:\src\flutter> C:\src\flutter\bin\internal\content_aware_hash.ps1
c24231e276e0719738e175e0622e040ad21a7012
```

```shell
❯ ~/src/flutter/bin/internal/content_aware_hash.sh
c24231e276e0719738e175e0622e040ad21a7012
```
<!-- end_revert_body -->

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