Merge "Update status bar transition start time" into sc-qpr1-dev am:...

Merge "Update status bar transition start time" into sc-qpr1-dev am: 5784ba0c am: 481ea665 am: 0a201a13

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15879493

Change-Id: I1b3311fe31f79d7470ac3f8ddb3b0f31336bb490