Flipper: Fix exception in popup menus
Flipper: Fix exception in popup menus

Summary: When JavaScript fiction meets native interop reality, things get weird. Apparently some coordinates must be integer values.

Reviewed By: mweststrate

Differential Revision: D19606677

fbshipit-source-id: 88a6e8c465e59078b070b56b37eee571274c494a

facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper