am 642d1556: am 3f73549b: Merge "For performance reason, we choose to block...

am 642d1556: am 3f73549b: Merge "For performance reason, we choose to block the picture update during drag and fling. For sites like nytimes.com, there is a JavaScript constantly updating the content. If we don\'t block the live update during drag/fling, frame rate ca

Merge commit '642d1556f13ac13f07515309288214e532029c50' into kraken

* commit '642d1556f13ac13f07515309288214e532029c50':
  For performance reason, we choose to block the picture