9ca019b8f8
- This brings it in line with PlayerControlView. The play action is displayed instead, and pressing it seeks to the default position of the current window. - Do the same for MediaSessionConnector - Add support for PlaybackPreparer consistent with PlayerControlView Issue: #5072 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=221076008