https://github.com/flutter/engine/compare/0f6229ab1d39...3b944102a56e

git log 0f6229ab1d3915bac6967f08a8074d58ebfeb656..3b944102a56e8f4182e6601113fc36538edf3de9 --no-merges --oneline
3b944102a Un-deprecated FlutterViewController's binaryMessenger. (flutter/engine#9767)
7e65b81cc Roll src/third_party/dart 09fc76bc51..24725a8559 (43 commits)
a03e74743 Add hooks for InputConnection lock and unlocking (flutter/engine#9727)

The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff (garyq@google.com), and stop
the roller if necessary.