This most likely has the same root cause as  crbug.com/774716 , but it manifests as page numbers being off.  Affected tests:

printing/allowed-page-breaks.html
printing/css2.1/page-break-after-001.html
printing/css2.1/page-break-before-001.html
printing/css2.1/page-break-before-002.html
printing/css2.1/page-break-inside-000.html
printing/iso-page-in-inches.html
printing/iso-page-in-points.html
printing/numberOfPages.html
printing/page-and-element-geometry-match.html
printing/page-break-after-avoid.html
printing/page-break-before-avoid.html
printing/page-break-inside-avoid.html
printing/page-break-orphans-and-widows.html
printing/page-break-orphans.html
printing/page-break-widows.html
printing/page-count-percentage-height.html
printing/page-count-relayout-shrink.html
printing/pageNumerForElementById.html
printing/print-media-recalc.html
printing/stretch-to-view-height.html