Update comment in assets.js.
Update comment in assets.js.

The asset works in Firefox, so it doesn't require Chrome, it just
doesn't work in older versions of Chrome.

Change-Id: Id9102ff19791fd232b8ff94bbd2c7e00e894affe

vimond/shaka-player,vimond/shaka-player,vimond/shaka-player,russitto/shaka-player,TheModMaker/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,russitto/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,indiereign/shaka-player,TheModMaker/shaka-player,russitto/shaka-player,tvoli/shaka-player,tvoli/shaka-player,indiereign/shaka-player,TheModMaker/shaka-player,shaka-project/shaka-player,indiereign/shaka-player,TheModMaker/shaka-player