0 0 1 Dart

Redo: Rewrite MouseTracker's tracking and notifying algorithm (#42486)

* Revert "Revert "Rewrite MouseTracker's tracking and notifying algorithm (#42031)" (#42478)"

This reverts commit eede792923ece2d76106c9e0742c45000be48834.

* Fix tests

Tong Mu committed 6y ago

0aafdfa55aed19e919cf86204d4d6d3eaa11f948

Parent: 4dcf1ab

Committed by GitHub <noreply@github.com> on 10/11/2019, 5:10:56 PM