chromium/chrome/test/data/pdf/accessibility/hello-world-expected-blink.txt

pdfRoot name='PDF document containing 1 page' restriction=readOnly
++region name='Page 1' restriction=readOnly isPageBreakingObject=true
++++paragraph restriction=readOnly
++++++staticText name='Hello, world!' restriction=readOnly
++++++++inlineTextBox name='Hello, world!' restriction=readOnly