Changes in 20200802093514

Built from 62f4c4a1a0ef16daa7f98b98cc43ddcca39ff163

..index..
Bug 1656616 R[Core:Audio/Video: Playback]Update mp4parse-rust to 63325444
Bug 1656598 R[Core:Fuzzing]Add AVIF support to DecodeToSurface fuzzer
Bug 1654094 R[Core:JavaScript: Internationalization API]Update ICU care-and-feeding docs for automatic big-endian support
Bug 1656418 A[Core:Layout]Enable partial pre-render by default in nightly
Bug 1656133 R[Core:Layout: Text and Fonts]Remove or update probes expiring in Firefox 82: BASE_FONT_FAMILIES_PER_PAGE
Bug 1656017 R[Core:Layout: Text and Fonts]Assertion failure: faceMap, at /builds/worker/checkouts/gecko/gfx/thebes/SharedFontList.cpp:483
Bug 1655285 R[Core:Networking: HTTP]Return an "Intel" User-Agent string on ARM64 macOS
Bug 1654484 R[Core:Print Preview][Ubuntu] Print Preview is refreshed after closing Page Setup prompt
Bug 1599616 R[Core:Window Management]Fix web browser persist toolkit/components/windowcreator/test/browser_bug1204626.js for Fission
Bug 1652383 A[Firefox:General]Intermittent browser/base/content/test/general/browser_bug559991.js | Found a tab after previous test timed out: http://example.org/browser/browser/base/content/test/general/dummy_page.html -
Bug 1656253 R[Firefox:Security]Turn off pref for redirecting www. URLs for bad cert domain error pages
Bug 1652374 R[Firefox Build System:General]Ensure we are linking with LLD by default everywhere possible
Bug 1654994 R[Firefox Build System:Task Configuration]Move debug info compression to upload-symbols task
Bug 1648868 R[Toolkit:Printing]Setup a tab modal overlay for print preview UI
Bug 1653392 R[Toolkit:Printing]Setup a basic test for the print UI
Bug 1649202 R[Toolkit:Printing]Display print previews in modal UI
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Changes to 16 bugs - 13 fixed.