Merge "Switch JankTracker to FrameInfo::duration()" into nyc-dev
am: f91cbc7

* commit 'f91cbc7fd24e58a8e87b16c21363da94c3e039ea':
  Switch JankTracker to FrameInfo::duration()

Change-Id: I6339004d6cca3f8efaa4bc70d3a5628fc8795ef5