Merge "Include 'mEarliestFreezableTimeMillis' in the activity dump." into udc-dev am: 3f228e2bbb am: 6c8a6f7973

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23505753

Change-Id: Ia904291d1a34e1955ae3b4ff843f932399219d19
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>