Returns a Boolean value indicating whether rotation methods are forwarded to child view controllers.
YES if rotation methods are forwarded or NO if they are not.
This method is called to determine whether to automatically forward rotation-related containment callbacks to child view controllers.
The default implementation returns YES. Subclasses of the UIViewController class that implement containment logic may override this method to control how these methods are forwarded. If you override this method and return NO, you are responsible for forwarding the following methods to child view controllers at the appropriate times: