Summary: If there is a single child which is flex grow and flex shrink then instead of measuring and then shrinking we can just set the flex basis to zero as we know the final result will be that the child take up all remaining space.
Reviewed By: gkassabli
Differential Revision: D4147298
fbshipit-source-id: 51152e57eff8e322a833a6d698c30f8c5e2dcc35
12ebaa56b6