Fullscreen player gets stuck in pause after pressing play button from lock screen

[bryanluby]

Seeing an issue where the fullscreen player gets stuck in the pause state if you lock your phone while playing a video and then press the play button on the now playing controls from the lock screen. I was able to reproduce this with the repo example project.

Steps to reproduce:

• In the example project https://github.com/youtube/youtube-ios-player-helper/blob/master/Project/youtube-player-ios-example/youtube-player-ios-example/SingleVideoViewController.m#L27 change line 27 to play fullscreen @"playsinline" : @0,.
• Run the example application and go to the "Single Video" tab and play a video in full screen.
• While the video is playing, press the side button on the phone to lock the screen.
• Now tap the screen to bring up the now playing controls.
• Press the play button. Observe the video title gets cleared from now playing info.
• Now unlock the phone.
• Back in the example app, observe that the full screen player is always stuck in pause even after pressing the pause button.