Changes in 20210531115711

Built from fafcc4a3b16a3b45f7abcc174e46bdc4a46888ca

..index..
Bug 1710334 R[Core:DOM: Navigation]"Try Again" button of about:netError appears above error message
Bug 1620096 N[Core:Graphics: WebRender]Intermittent QR gfx/tests/reftest/709477-1.html == gfx/tests/reftest/709477-1-ref.html | load failed: timed out waiting for reftest-wait to be removed
Bug 1713223 R[Core:Graphics: WebRender]Remove device pixel scale from spatial tree and snapping logic
Bug 1713233 R[Core:Graphics: WebRender]Remove global device pixel scale from composite state and occlusion culling
Bug 1712701 R[Core:JavaScript Engine]Assert hasValue in PropertyDescriptor before allowing access to the value
Bug 1713285 R[Core:JavaScript Engine]Cleanups to prepare for bug 1704430
Bug 1713465 R[Core:JavaScript Engine]Rename getterObject and setterObject
Bug 1708643 R[Core:Storage: Quota Manager]Add and use QM_OR_ELSE_WARN_IF/QM_OR_ELSE_NOTE_IF/QM_OR_ELSE_LOG_IF macros
Bug 1712177 R[Core:Web Painting]Crash in [@ nsDisplayBlendMode::Paint]
Bug 1712569 R[Firefox:Address Bar]Reader View page action tooltip is "undefined"
Bug 1712814 N[Firefox:Bookmarks & History]High frequency browser/components/places/tests/browser/browser_bookmark_popup.js | Test timed out -
Bug 1713582 N[Firefox Build System:Task Configuration]Permanent busted decision and cron tasks: Exception: Build job build-macosx64-ccov/opt has no tests, but specifies MOZ_AUTOMATION_PACKAGE_TESTS=1 in the environment. Unset MOZ_AUTOMATION_PACKAGE_TESTS in the task definition to fix.
Bug 1708735 R[Toolkit:Themes]Make the arrow panel code more generic
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Changes to 13 bugs - 10 fixed.