Add tests for FlBinaryMessenger, FlBasicMessageChannel, FlMethodChannel (#18597)

* Add mock implementations of the Flutter embedding API and EGL
* Add tests for FlBinaryMessenger, FlBasicMessageChannel, FlMethodChannel
https://dart.googlesource.com/external/github.com/flutter/engine/+/a095cc23d8d5a539fd6179846875d7218c60bdff
1 file changed
tree: c5fc9c2a1f5d7a7e928c3b57ed8158564f5117e7
  1. commits.json