Merge "SupportLeanbackDemo: support delay loading page fragment data" into nyc-dev
am: 0c91f79b5a

* commit '0c91f79b5ae87fe635e3f10e33a30970a8b468d5':
  SupportLeanbackDemo: support delay loading page fragment data

Change-Id: Ib43a0cf93704b7135dc778a93ddbd129978b338f