Tong Mu 0aafdfa55a
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
2019-10-11 10:10:56 -07:00
..
2019-05-24 19:12:45 -07:00
2018-09-12 08:29:29 +02:00