[flutter_releases] Flutter 1.22.4 engine cherrypicks

[christopherfujino]

previous build

Scheduled Cherrypicks

• Dart 2.10.4
  • dart-lang/sdk@7c148d0
• [iOS] adding autoFillHint to TextFormField breaks FocusScope.of(context).nextFocus() #66144
  • [iOS] adding autoFillHint to TextFormField breaks FocusScope.of(context).nextFocus() flutter#66144
  • 3f27800
  • Original author: @LongCatIsLooong, original approver: @justinmc
• platform views on by default introduced a race condition #69449
  • platform views on by default introduced a race condition flutter#69449
  • 122f242
    • Original author: @gaaclarke, original approver @cyanglaz
  • fb72023 (had a merge conflict)
    • Original author: @cyanglaz, original approver @cbracken

Known Presubmit Failures

• Linux/Mac Web Engine
  • LUCI try jobs for release branches should use correct builder/recipes flutter#53371
• Mac iOS Engine
  • This is due to running the master channel recipe LUCI try jobs for release branches should use correct builder/recipes flutter#53371
  • The upstream change that broke this was https://flutter-review.googlesource.com/c/recipes/+/6960

Known Postsubmit Failures

[flutter-dashboard]

This pull request was opened against a branch other than master. Since Flutter pull requests should not normally be opened against branches other than master, I have changed the base to master. If this was intended, you may modify the base back to flutter-1.22-candidate.12. See the Release Process for information about how other branches get updated.

Reviewers: Use caution before merging pull requests to branches other than master, unless this is an intentional hotfix/cherrypick.

[pcsosinski]

approved for branch

[cyanglaz]

LGTM on fb72023 and 122f242

[LongCatIsLooong]

3f27800 LGTM

[christopherfujino]

All outstanding CI failures accounted for in description (and they're the same as the previous build), so merging this.

[christopherfujino]

This PR required a follow-up fix, #22478