Merge "Update Dialog button text to have medium font weight" into tm-qpr-dev am: 13f6aed5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19261457



Change-Id: Ife45f8c963ffa2cbdf3ca9a7a119ccbc98700cc2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>