only auto-close the drawer when selecting from the list

Previously tablet UI would close the drawer any time any conversation
would open. With peek mode, this happens a lot even when the user didn't
trigger it.

Restrict the auto-close to cases where the user actually taps/keyboard-
Enter a list item.

Bug: 18020565
Change-Id: Ia4c15c70f99619874fdd1bea760ceeb6bd2a8345
1 file changed