AVKit Changes AVKit (Added) AVKit.h (Added) AVKitDefines.h (Added) Added #def AVKIT_EXTERN AVPlayerViewController.h (Added) Added AVPlayerViewController Added AVPlayerViewController.contentOverlayView Added AVPlayerViewController.player Added AVPlayerViewController.readyForDisplay Added AVPlayerViewController.showsPlaybackControls Added AVPlayerViewController.videoBounds Added AVPlayerViewController.videoGravity