Changes in 20191223214135

Built from 99d782b09b7d036db2596201c7dae8baf06de85e

..index..
Bug 1588154 R[Core:DOM: Service Workers]Turn on/enable service worker parent interception ("dom.serviceWorkers.parent_intercept") by default
Bug 1605554 R[Core:Graphics]Use after free in GetSkImageForSurface
Bug 779598 R[Core:Graphics: Layers]Consider doing animations of transforms with preserve-3d off the main thread
Bug 1589669 R[Core:Graphics: WebRender]Picture caching doesn't work well when zoomed in on android
Bug 1605658 R[Core:JavaScript Engine]ValueToSource should handle JSFunctions explicitly as a fallback
Bug 1602530 A[Core:JavaScript Engine]Improve vm/Opcodes.h comments
Bug 1603551 R[Core:Networking: Cache]Return value not checked in nsOfflineCacheUpdate.cpp before using an out variable
Bug 1605419 V[Core:WebRTC: Networking]Whitelisting the meet.jit.si domain doesn't block the mDNS
Bug 1572409 R[DevTools:Debugger]Make the debugger use the TargetList API and support target switching
Bug 1605347 V[DevTools:Framework]Perma TEST-UNEXPECTED-FAIL | devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_process_main.js | Debug target item of the main process should display - when Gecko 73 merges to Beta on 2020-01-06
Bug 1605370 R[DevTools:General]Cleanup DevTools tests using ok() incorrectly
Bug 1597994 R[Firefox:Firefox Accounts]There should be a link under my accounts menu to access this page - https://accounts.firefox.com
Bug 1601894 R[Firefox:Search]Compare list.json + ABSearch with modern config and figure out if the differences need to be addressed
Bug 1590254 N[Firefox:Search]Tier 2 - Intermittent toolkit/components/search/tests/xpcshell/test_maybereloadengine_update_distro.js | test_maybereloadengine_update_distro - Engines should be reloaded during test, because region fetch succeeded - fal
Bug 1605537 R[Firefox Build System:General]change some flags for wasm compilation
Bug 1604917 R[GeckoView:General]GeckoView removes leading zeros from colors in Web App Manifest
Bug 1535193 R[Release Engineering:Release Automation: Other]empower sheriffs to monitor release graphs through treeherder
Bug 1595989 R[Toolkit:XUL Widgets]Disable popup auto hide not working with the search bar
Bug 1605737 R[Toolkit:XUL Widgets]Remove references to "application/cached-xul"
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Changes to 19 bugs - 14 fixed.