Changes in 20210614095307

Built from e77eb14241b9e712ddda1e8c1cc21ef455377e3c

..index..
Bug 1675902 N[Core:DOM: Core & HTML]Intermittent dom/base/test/test_bug622117.html, test_bug622246.html, test_copypaste_disabled.html | Test timed out.
Bug 1694639 R[Core:DOM: Web Authentication]Add DOM:Web Authentication cross-origin tests
Bug 1716171 R[Core:Layout]Make WPT /inert/inert-retargeting-iframe.tentative.html more robust
Bug 1649367 R[Core:Layout]Explicitly use InProcess version of IsRootContentDocument for frame visibility
Bug 1542807 R[Core:Layout]Remove legacy layout code path for ::marker (nsBulletFrame)
Bug 1700245 A[Core:Layout]Use nsLayoutUtils::IsAncestorFrameCrossDocInProcess instead of nsLayoutUtils::IsAncestorFrameCrossDoc
Bug 1716139 R[Core:Layout: Images, Video, and HTML Frames]Permafailing reftests/image-element/element-paint-native-widget.html == reftests/image-element/element-paint-native-widget-ref.html | image comparison, max difference: X, number of differing pixels: Y when Gecko 91 merges to Beta on 2021-07-12
Bug 1699837 R[Core:Printing: Output]Remote frames are zoomed in or out when printing to PDF
Bug 1481470 R[Firefox:Theme]Stop using xlink:href in SVG (just use href) in remaining parts of the codebase
Bug 1715947 R[GeckoView:General]Don't call JNI callback after GeckoHlsPlayer is released
Bug 1715517 R[Remote Protocol:CDP]Only return moz:debuggerAddress capability if CDP is active
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Changes to 11 bugs - 9 fixed.