Refreshes the AccessibilityNode.frame of all nodes in the accessibility hierarchy.
This is a convenience method that updates the AccessibilityNode.frame of all nodes in the
accessibility hierarchy based on AccessibilityNode.frameGetter and notifies the screen reader
of these updates by calling IAccessibilityNotificationDispatcher.SendLayoutChanged
(with a null parameter).
Call this method when most or all of the nodes on the screen require a layout update. For example, when the
user scrolls the application's interface, or when the orientation of the screen changes.
Note: For nodes with no AccessibilityNode.frameGetter set, this method resets their
AccessibilityNode.frame to Rect.zero.