Changes in 20201206093054

Built from 5a17a9893fe09fd912f1972b204d0f9ca1184b28

..index..
Bug 1671170 R[Core:CSS Parsing and Computation]7.03 - 12.09% raptor-stylebench-firefox (linux64-shippable, linux64-shippable-qr, windows10-64-shippable, windows10-64-shippable-qr, windows7-32-shippable) regression on push 41d48f6233e24c6ce8244c9572203d06515bfe54 (Fri October 9 2020)
Bug 1675894 A[Core:DOM: Selection]Disconnected text controls does not fire selectionchange on input elements
Bug 1680798 R[Core:DOM: Selection]select() sets selectionDirection to none when it's unsupported
Bug 1680548 R[Core:DOM: Selection]Cache max length in TextControlState::SelectionProperties when calling SetValue
Bug 1680938 R[Core:GFX: Color Management]Remove unused libc imports.
Bug 1680921 R[Core:GFX: Color Management]More control flow fixing.
Bug 1588310 R[Core:ImageLib]Improving progressive rendering of incomplete JPEG scans
Bug 1678756 R[Core:SVG]Check we don't run off the end of the textPath while skipping characters
Bug 1678060 N[Core:WebRTC: Audio/Video]Intermittent dom/media/webrtc/tests/mochitests/test_getUserMedia_basicTabshare.html | application crashed [@ mozilla::TabCapturer::OnFrame(mozilla::dom::ImageBitmap*)]
Bug 1652220 R[Core:Widget: Gtk][CSD] Titlebar fails to switch to inactive style
Bug 1610710 R[Firefox:New Tab Page]High frequency browser/base/content/test/general/browser_bug767836_perwindowpb.js | A promise chain failed to handle a rejection: (Unable to convert rejection reason to string.) - stack: (No stack available.)
Bug 1680622 R[GeckoView:Extensions][1538348 subtask 5] Cancelling downloads on certain HTTP status codes - add support to WebExecutor
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Changes to 12 bugs - 9 fixed.