tree 7d3a04889abe66d2f764e9671d626bcba2eb9255
parent 8c93a140f61d2880163dcc7dc99fa177aa4f0b2b
author Chih-Chung Chang <chihchung@google.com> 1340098490 +0800
committer Chih-Chung Chang <chihchung@google.com> 1340172981 +0800

Fade in/out the undo bar.

The fading out happens after 3 seconds or the user swipes away.

Bug: 6610348

Change-Id: Icd4dea7b0396f26556240adab93b9e645a9f1e58