onMenuVisibilityChanged  151 chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java     void onMenuVisibilityChanged(boolean isVisible) {
onMenuVisibilityChanged   15 chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuObserver.java     public void onMenuVisibilityChanged(boolean isVisible);