Merge "Add WebView scroll activity to UiBench" into nyc-dev am: 597acb4d0b
am: 99d5e0f84f

* commit '99d5e0f84ffcfcf349ec206fde3b29857fb81e89':
  Add WebView scroll activity to UiBench

Change-Id: Ifdacd3f35b20d4a01d14212275b43ea1a163019e