* Revert "Roll engine to 834d6eb02988e7f2c44eda05cec908378a1a9138 (#14664)"
This reverts commit c19fbe86ddf9a82e848bcf8c7caf8a233965d514.
Reason: timeouts while doing hot reload in hot_mode_dev_cycle__preview_dart_2_benchmark.
It seems that setTraversalBefore doesn't work as well as setTraversalAfter for some reason, although I'm using them the same way. Some apps would lock up TalkBack when traversing if setTraversalBefore was set, but not with the equivalent setTraversalAfter.
It's not entirely clear why this is, but I'm going with this to at least get it fixed for apps we know about.
Fixes#14600
Includes:
* Roll topaz to 531e2778d86b213bc663ea51bb0e0dde33d8ac8c (#4657)
This supports SDK/project paths including URI-escaped UTF-8 sequences
(e.g., including spaces, accented characters, etc.).
Includes:
* Roll topaz to 08a3394395036a2bb9b556f5b0eb8f365d2c0fa5 (flutter/engine#4650)
* [fuchsia] Add missing AOT entry points for FromFileResult and MapResult. (flutter/engine#4649)
* [fuchsia] Fix compile-time error introduced in 58e6c23. (flutter/engine#4651)
* Roll topaz to 046105efd225ed61c94e65dbd4a528256a3a34a9 (flutter/engine#4652)
Topaz rolls enable:
* Support for Flutter SDK, project paths including spaces (flutter/engine#4650)
* Support for Flutter SDK, project paths including arbitrary UTF-8 sequences (flutter/engine#4652)
* Roll engine to pre-dart roll
* Roll engine to pick up updated dart
* Apply Map changes
* Move to dev.22
* Fix some analysis issues
* Silent analyzer
* More consts
* More const massaging
* Yet more const massaging
* Yet more const massaging
* Use nonconst()
Includes:
* Only implement application:performActionForShortcutItem:completionHandler on iOS 9.0+ (flutter/engine#4600)
* [fuchsia] Remove MessageLoopHandler dependency (flutter/engine#4618)
* Use @available checks for iOS 11 features (#4619)
When Flutter is vendored as a submodule, `.git` is a File whose contents
are a pointer to the Git directory. This change allows you to pin your
app to a certain version of Flutter via submodules.
Generate the "version" file from git tags.
Remove the old VERSION file and mentions of versions in pubspec.yaml files.
Replace the old update_versions.dart script with a new roll_dev.dart script.
Update "flutter channel".
Update "flutter upgrade", including making it transition from alpha to dev.
Update "flutter --version" and "flutter doctor".
* Revive "Push physical layers with paths instead of rects in RenderPhysicalModel. (#13942)"
That commit was reverted due to a performance problem which has now been
fixed.
* Roll engine 05fe72d068e19c7886e8d27f9b004201d5ad1300
In the packaged ZIP files for Flutter we bundle mingit on Windows to make setup for our users easier (they don't have to download and install git anymore). This change makes Flutter use the bundled mingit if it is available and if git is not installed on the system.
This change will still require that users add `flutter\bin` to their path or they'll have to execute `flutter\bin\flutter.bat` directly. A follow-up PR will add a pre-configured Flutter Console that people can start with a double-click to minimize setup even further.
Also in this PR:
* If 7Zip is not available to unpack the Dart SDK try 7Zip's standalone version.
