PlatformMediaSessionManager::sessionWillBeginPlayback should allow resuming media elements
While trying to reproduce https://bugs.webkit.org/show_bug.cgi?id=243982, I was able to reproduce an issue where media elements would not restart autoplaying, with the same steps as expressed in https://bugs.webkit.org/show_bug.cgi?id=243982.
Pull request: https://github.com/WebKit/WebKit/pull/3364
<rdar://problem/99036172>