Fix URL updates on paste on Android
Fix URL updates on paste on Android

The down side to this fix is that we lose the ability to load an asset
by pressing Enter on the custom input fields, but I am not convinced
that we need that.  Losing it makes things simpler.

Closes #1079

Change-Id: I87c8fc9fc2ed0b2f1d395c0fab861c7cfb0564f8

TheModMaker/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,TheModMaker/shaka-player,TheModMaker/shaka-player,TheModMaker/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,tvoli/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player