Merge "[Media TTT] Don't show scrubbing times if we don't have the prev or...

Merge "[Media TTT] Don't show scrubbing times if we don't have the prev or next button." into tm-dev am: 7af8cbc4 am: 394937fd am: c9f3453b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17638186



Change-Id: I042b51d1613e55b5a88726fac1c6d4be928ba053
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>