Merge "Add WebView scroll activity to UiBench" into nyc-dev am: 597acb4d0b
am: 80cb9b35ae

* commit '80cb9b35ae2461078372a3e5bc5b230caf63de75':
  Add WebView scroll activity to UiBench

Change-Id: Ie6694da25e90425d7ba69e22682b3abeb843fc84