Bug 1082563 - video playback screen remains black for few sec after susp...

...end resume in video app
Please don't remove this code. This is different than the visibility change case. Here, the user has actually pressed the back button to go back to the list of videos, and we know that they're really done with this one. They are unlikely at this point to tap on the same video to resume it. There may be memory or other performance reasons to actually unload the video in this case, so please keep this code in. 

Note, however, that the comment seems completely out of date. The "so other apps can use it" is not longer valid. And the bit about leaving player mode when we're hidden is also not true.  So most of the comment should be deleted.