tree ff6b4032765fc31f1e9531c1db2323c88014133e
parent 410451fcec2e9d6c6e7d2371a401981d4d73faad
author yueg <yueg@google.com> 1518724389 -0800
committer Copybara-Service <copybara-piper@google.com> 1519291518 -0800

Add logging to NUI.

Including:
- switching tabs
- touch search list
- press back button
- click search bar and voice button
- click FAB
Test: MainActivityOldPeerTest, MainSearchControllerTest
PiperOrigin-RevId: 185875596
Change-Id: Ie7824ce2f7a2570327abdb35cef1538cad786e73