Merge "[Media] Update paging indicator to be light gray." into tm-dev am: 7b942753

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17802068



Change-Id: I9e6edb764b1ee936a63831c2b82d474ac1c259a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>