Add missing exportDocs in offline
Add missing exportDocs in offline

These types are part of the offline APIs, so they should be in the
exported docs.

Change-Id: Ibd9dfa9c61204a77fc3ba596fc0abb7c07ac557c

tvoli/shaka-player,TheModMaker/shaka-player,TobbeEdgeware/shaka-player,indiereign/shaka-player,brightcove/shaka-player,brightcove/shaka-player,TobbeEdgeware/shaka-player,indiereign/shaka-player,Ross-cz/shaka-player,vimond/shaka-player,vimond/shaka-player,TheModMaker/shaka-player,Ross-cz/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,russitto/shaka-player,TheModMaker/shaka-player,TheModMaker/shaka-player,shaka-project/shaka-player,TobbeEdgeware/shaka-player,vimond/shaka-player,tvoli/shaka-player,Ross-cz/shaka-player,shaka-project/shaka-player,russitto/shaka-player,brightcove/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,russitto/shaka-player,indiereign/shaka-player