tree 4badddc4bbe7531198c3dd927e343ed047f22322
parent 0829fb2427ad21588e6b74759973380d67ba3030
author Yifan Hong <elsk@google.com> 1567645879 -0700
committer Yifan Hong <elsk@google.com> 1567647195 -0700

ImageManager::UnmapImageIfExists.

Test: pass
Change-Id: I710dd56c8b065da9eef92d2caffc89a0c493624c