Merge "Add WebView scroll activity to UiBench" into nyc-dev
am: 597acb4d0b

* commit '597acb4d0b9bf06d4021dc7a7154675d64cebb7d':
  Add WebView scroll activity to UiBench

Change-Id: I1b075ec6fead8d77d3776d7ddcd5263625660c07