…ntation for regular windows that always throws (flutter/flutter#172478)

Roll Flutter from 871849e4b6bf to beda687d63f2 (34 revisions)

flutter/flutter@871849e...beda687

2025-08-04 [email protected] [Impeller] Improvements to the Vulkan pipeline cache data writer (flutter/flutter#173014)
2025-08-04 [email protected] [Impeller] Terminate the fence waiter but do not reset it during ContextVK shutdown (flutter/flutter#173085)
2025-08-04 [email protected] Add the 'windowing' feature flag and use to wrap an implementation for regular windows that always throws (flutter/flutter#172478)
2025-08-04 [email protected] licenses_cpp: reland switch 4 (flutter/flutter#173139)
2025-08-04 [email protected] Roll Skia from 763bba9c33fd to dce9550a1356 (1 revision) (flutter/flutter#173219)
2025-08-04 [email protected] Improve robustness of comment detection when using flutter analyze --suggestions (flutter/flutter#172977)
2025-08-04 [email protected] Make sure that a LicensePage doesn't crash in 0x0 environment (flutter/flutter#172610)
2025-08-04 [email protected] Roll Packages from f0645d8 to 1a72287 (4 revisions) (flutter/flutter#173215)
2025-08-04 [email protected] Roll Skia from edf0f8a5bba6 to 763bba9c33fd (1 revision) (flutter/flutter#173213)
2025-08-04 [email protected] [web] Add Intl.Locale to parse browser languages. (flutter/flutter#172964)
2025-08-04 [email protected] Roll Skia from 439f80973f4a to edf0f8a5bba6 (2 revisions) (flutter/flutter#173204)
2025-08-04 [email protected] Roll Skia from 9d30cc96a3b2 to 439f80973f4a (1 revision) (flutter/flutter#173201)
2025-08-04 [email protected] Roll Skia from 39c70f883c0e to 9d30cc96a3b2 (1 revision) (flutter/flutter#173197)
2025-08-04 [email protected] Roll Skia from 09667386bcba to 39c70f883c0e (1 revision) (flutter/flutter#173194)
2025-08-04 [email protected] fix: get content hash for master on local engine branches (third attempt)  (flutter/flutter#173169)
2025-08-03 [email protected] Roll Fuchsia Linux SDK from wZuA8Dqty4scQkZuV... to ufssK8EgJ_9RpLFgu... (flutter/flutter#173190)
2025-08-03 [email protected] Roll Skia from e056e47e118b to 09667386bcba (2 revisions) (flutter/flutter#173185)
2025-08-03 [email protected] fix: tag fuchsia package after uploading (flutter/flutter#173140)
2025-08-02 [email protected] Roll Skia from 7ef888e30a28 to e056e47e118b (1 revision) (flutter/flutter#173170)
2025-08-02 [email protected] Roll Fuchsia Linux SDK from yFLr81lLXmSX7n11D... to wZuA8Dqty4scQkZuV... (flutter/flutter#173166)
2025-08-02 [email protected] Roll Skia from af6d6eb383a6 to 7ef888e30a28 (1 revision) (flutter/flutter#173157)
2025-08-02 [email protected] Add `innerRadius` to `RadioThemeData` (flutter/flutter#173120)
2025-08-02 [email protected] Roll Skia from 81dd6aa516b0 to af6d6eb383a6 (2 revisions) (flutter/flutter#173144)
2025-08-01 98614782+auto-submit[bot]@users.noreply.github.com Reverts "fix: get content hash for master on local engine branches (#173114)" (flutter/flutter#173145)
2025-08-01 [email protected] Roll Dart SDK from 6e1bb159c860 to 3f1307d72d6f (2 revisions) (flutter/flutter#173136)
2025-08-01 [email protected] Roll Skia from 9e2c59634961 to 81dd6aa516b0 (1 revision) (flutter/flutter#173135)
2025-08-01 [email protected] Reformat text.dart's code snippets (flutter/flutter#172976)
2025-08-01 [email protected] experiment with docs properties (flutter/flutter#173124)
2025-08-01 [email protected] fix: get content hash for master on local engine branches (flutter/flutter#173114)
2025-08-01 [email protected] Make sure that a RawAutocomplete doesn't crash in 0x0 environment (flutter/flutter#172812)
2025-08-01 [email protected] Add skia_ports_fontmgr_android_parser_sources (flutter/flutter#172979)
2025-08-01 [email protected] Roll Skia from 49e39cd3cf18 to 9e2c59634961 (10 revisions) (flutter/flutter#173125)
2025-08-01 [email protected] fix: 🐛 Add equality and hashCode implementations to ResizeImage (flutter/flutter#172643)
2025-08-01 [email protected] Roll Fuchsia Linux SDK from xo_bqOoFuBKFmgKxn... to yFLr81lLXmSX7n11D... (flutter/flutter#173117)

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...

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>
# Conflicts:
#	packages/flutter_tools/lib/src/features.dart
#	packages/flutter_tools/lib/src/flutter_features.dart
#	packages/flutter_tools/test/general.shard/flutter_validator_test.dart
#	packages/flutter_tools/test/src/fakes.dart

…ntation for regular windows that always throws (flutter/flutter#172478)

…r regular windows that always throws (flutter#172478)

## What's new?

- Added the `windowing` feature flag to the project
- Created the internal `_window.dart` API with support for regular
windows
- Implemented a `_WindowingOwnerUnsupported` implementation of the
`WindowingOwner` interface
- Marked all points of the public API as `@internal` with a
corresponding warning documentation
- Threw an `UnsupportedError` where it is appropriate to do so

Note that this PR does **NOT** include a real implementation of
`WindowingOwner` (e.g. for win32 or macOS). That work will be opened as
a follow up.

This work is based off of flutter#168697
and http://github.com/flutter/flutter/pull/168437, as well as this
design document:
https://docs.flutter.dev/go/multi-window-experimental-apis

## 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: Loïc Sharma <[email protected]>