* Add examples for LinearProgressIndicator

* Add examples for CircularProgressIndicator

* Change name Linear  -> Circular

* Remove unnecessary changes

* Add images to docs

* Fix semi-colon bugs

* Fix trailing spaces

* Fix more semicolon bugs

* Remove imports in docs

* Remove error causing line breaks

* Add ticker providers

* Add more ticker providers

* Remove assets and combine samples

* Removed 6 samples

* Remove unnecessary animation
Co-authored-by: John Ryan <ryjohn@google.com>

* Remove unnecessary animation
Co-authored-by: John Ryan <ryjohn@google.com>

* Use material theme
Co-authored-by: John Ryan <ryjohn@google.com>

* Apply suggestions from code review
Co-authored-by: John Ryan <ryjohn@google.com>

This reverts commit 9b56241e.

This removes the last couple of doc references to the Window class in the framework, so that I can re-land the engine side change that removes the Window class (flutter/engine#22505).

* Move web integration tool tests to web.shard

Web integration tool tests depend on DDC changes in SDK. This change
moves them to a separate shard and subshard so CI bot configurations
can run them separately.

In particular, with will allow running those tests on dart CI flutter
HHH web bot instead of a non-web one, allowing early detection and easy
classification of issues caused by SDK changes as VM- or Web related.

* Enabled verbose mode for flaky web_tool_tests

* fixed local engine crash with --enable-asserts

* Disable failing tests, fix local engine with asserts

* Removed mac web_tool_tests bot

* Addressed CR comments

* Add disabled mac web_tool_tests and disable win web_tool_tests

* Added notificationListner sample code

* Fixed spacing

* fixed spacing

* Moved the variables into the Build method

* fixed typos

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* Update packages/flutter/lib/src/widgets/notification_listener.dart
Co-authored-by: John Ryan <ryjohn@google.com>

* [integration_test] Reland add a `run` method for proper reporting of test results

* Changes to path resolving from previous PR

This reverts commit 2a5aa294.

Additionally, fix a few NNBD issues.

Fixes https://github.com/flutter/flutter/issues/70408

This reverts commit 8749d955.

* Disable failing test due to SDK issue

* Disable failing debugger and hot reload windows tests

In principle this is backwards compatible; I just merged all the classes into one and deprecated everything that became redundant as a result.