Use isAggregatedVisible for pane events

When the pane title changes, the view may not be actually visible on screen.
Check parent visibility before sending a pane event.

Bug: 133131221
Test: manual check to ensure we don't receive title event, atest AccessibilityPaneTest
Change-Id: I8bad8f742cc3e8f4d906c2b6fe80a3516c900ef1

core/java/android/view/View.java

@@ -14173,7 +14173,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
                 && isAccessibilityPane()) {
             // If the pane isn't visible, content changed events are sufficient unless we're
             // reporting that the view just disappeared
-            if ((getVisibility() == VISIBLE)
+            if ((isAggregatedVisible())
                     || (changeType == AccessibilityEvent.CONTENT_CHANGE_TYPE_PANE_DISAPPEARED)) {
                 final AccessibilityEvent event = AccessibilityEvent.obtain();
                 onInitializeAccessibilityEvent(event);