tree c290abef37aedc05ce0642e78ed6eccbf4bb5adb
parent 8ec4e7d06f7ea87252d1e1c98fa9e61613a42db3
author chihhangchuang <chihhangchuang@google.com> 1591347035 +0800
committer chihhangchuang <chihhangchuang@google.com> 1591347653 +0800

Uses WorkspaceSurfaceHolderCallback for GridPreviewer

Video: https://drive.google.com/file/d/1XW8tM3HBvnDSOHHi4ORn1_XpvEd9joDc/view?usp=sharing

Test: Manually
Fixes: 158163054
Change-Id: Icda7685e3066215fbcd16a50ba0a094d1a92a280