Chroming the map tooltip to use opacity fade transitions.
Chroming the map tooltip to use opacity fade transitions.


Former-commit-id: 40f98214883f3ba1737166401eab9d4e613d0b3e
JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView