For this, I added back my previous CustomDart attribute for customizing the generated Dart code of an interface. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/1162843003
Also use Point in place of passing 2 ints to the DrawLooper API. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/1158883004
R=abarth@chromium.org Review URL: https://codereview.chromium.org/1158693005