tree 9a8b8fa7d0da034f164eb99bc3daf3740d1d4146
parent 943fe40429b8df359baa8e8eb133e52e35973e69
author Santiago Etchebehere <santie@google.com> 1558655623 -0700
committer Santiago Etchebehere <santie@google.com> 1558655625 -0700

Do not show toast when coming from PreviewFragment

TopLevelPickerActivity shows a Toast to confirm wallpaper
has been set successfully, and PreviewFragment also shows it
(as it could be called from other, Activities).
So in TopLevelPickerActivity, when coming from
PreviewFragment, we don't want to show the Toast as it was
already shown once.

Fixes: 123589179
Change-Id: I218e743e7873c13e42d7018a54c2fc4099569de5