chromium/content/test/data/accessibility/html/details-expected-android.txt

android.webkit.WebView focusable focused
++android.view.View
++++android.view.View role_description='disclosure triangle' clickable collapsed focusable name='details tag'
++android.view.View
++++android.view.View role_description='disclosure triangle' clickable expanded focusable name='details tag open'
++++android.widget.TextView name='The details tag with open specifies that the details should be visible (open) to the user.'