commit c1f8f9cbfc879ac5955c73877a14fb7689eb5b65
author Riddle Hsu <riddlehsu@google.com> Fri Oct 25 16:54:33 2019 +0800
committer Riddle Hsu <riddlehsu@google.com> Wed Nov 06 20:58:19 2019 +0800
tree 9b76ccd0f6eca58eda25b9a5ba81da9807cd6bee
parent 94da14c5ae62c6d9b8d9b58a341d3271702c1769

Postpone reporting fully drawn until app is drawn

"Fully drawn" should stand for an usable state of the application.
If its window hasn't drawn, the early reported time may not close
to the real use case.

This change ensures that "Fully drawn" is at least >= "Displayed".

Bug: 131713448
Test: atest ActivityMetricsLaunchObserverTests#testOnReportFullyDrawn
Test: Launch an application (e.g. Settings) that invokes
      Activity#reportFullyDrawn in an early stage. The printed
      duration of "Displayed" and "Fully drawn" should show
      the same time.

Change-Id: Id37425436dc564fc657f0777db8e0f056bbb748d