Merge commit '80a1335049bd6653a558bd9a2c625c091900caff' * commit '80a1335049bd6653a558bd9a2c625c091900caff': Notify native plugin code when the browser discards the customView.
Merge commit '80a1335049bd6653a558bd9a2c625c091900caff' * commit '80a1335049bd6653a558bd9a2c625c091900caff': Notify native plugin code when the browser discards the customView.