Add support for in-context sheet transitions to the fab transition.

Authored by featherless on May 17 2017, 3:55 PM.

Description

Add support for in-context sheet transitions to the fab transition.

Summary: This makes it possible to use the fab transition to reveal sheets that cover only part of the screen.

Reviewers: O2 Material Motion, O4 Material Apple platform reviewers, Material Motion, markwei

Reviewed By: O2 Material Motion, O4 Material Apple platform reviewers, Material Motion, markwei

Subscribers: markwei

Tags: Material Motion

Differential Revision: http://codereview.cc/D3235