Changes in 20190923094800

Built from 07eb2cc7e1c31f2bc6ae24ade3847f39e1403acf

..index..
Bug 1482778 R[Core:Layout: Tables]Table outline does not include caption
Bug 1544147 N[Core:DOM: Content Processes]Intermittent dom/ipc/tests/test_process_error.xhtml,test_process_error.xul | Test timed out.
Bug 1550631 V[Firefox:about:logins]Record telemetry for direct navigation to about:logins
Bug 1573266 R[Core:JavaScript Engine]MOZ_CRASH(Mutex ordering violation) when thread creation fails
Bug 1575016 R[Core:Layout: Columns]Revisit the 1px minimum column block-size for column-boxes
Bug 1575744 R[Core:Networking: HTTP]Move NS_HTTP_ON_MAY_CHANGE_PROCESS_TOPIC to DocumentChannelParent
Bug 1576866 R[Core:CSS Transitions and Animations]border-image-{outset, slice, width} properties should interpolate smoothly
Bug 1577452 R[Firefox:Search]Run tests with modernConfig=true
Bug 1578535 R[Firefox Build System:General]figure out how to provide a recent libstdc++ for aarch64 cross builds
Bug 1579994 R[DevTools:Debugger]Debugger's pretty print shows old script
Bug 1581969 V[Firefox:Messaging System]Don’t suggest Sync during Sync registration
Bug 1582749 R[Core:Graphics: Text]8.59% raptor-tp6-fandom-firefox (linux64-shippable) regression on push c969a93b0ca78e59eee771e67f61ad28340b77dc (Sun September 15 2019)
Bug 1582772 R[Core:JavaScript Engine: JIT]Use branchSub32 to optimize some generated loops
Bug 1582901 R[Core:Web Replay]Improve stepping between frames
Bug 1583005 R[Core:Graphics: Text]Major performance regression with gfx.e10s.font-list.shared enabled
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Changes to 15 bugs - 12 fixed.
1 bugs are not included due to being restricted