Add logging for swipe and timeout

We weren't logging when the user swiped the carousel away, which makes
it hard to tell in bugreports whether players were set to inactive
because of that or something else.

Bug: 158721393
Bug: 160944177
Test: manual
Change-Id: Ie2205d6c369576f1f83996b2f96d040ddd328e83
(cherry picked from commit a0546c79)
Merged-In: Ie2205d6c369576f1f83996b2f96d040ddd328e83