chromium/content/test/data/accessibility/html/tab-panel-expected-uia-win.txt

Document
++TabItem Name='First Tab' SelectionItem.IsSelected=true
++TabItem Name='Second Tab' SelectionItem.IsSelected=false
++TabItem Name='Third Tab' SelectionItem.IsSelected=false
++Pane Name='First Tab'
++++Group IsControlElement=false
++++++Text Name='Content for the first panel, this should be read.'