Bug 926155 - Added reftest to verify that an element contained within a sticky element that is also a scroll container will be reflowed correctly when updated. r=dholbert

This test verifies that the reflow will not be interrupted by a sticky element that is also a scroll container.
Bug 942367 - Part 1: WebIDL changes for peerIdentity constraint. r=jib
Bug 942367 - Part 2: DOMMediaStream support for PeerIdentity. r=bholley, r=roc
Bug 942367 - Part 3: Stream isolation for WebRTC. r=jib, r=bholley
Bug 991040 - Uncaught async exceptions in mochitests now cause warnings. r=ted
Bug 997409 - Add set_thread_area to seccomp whitelist if available. r=kang
Debugging patch for bug 991600

--HG--
extra : rebase_source : f3f7b069253f208c66f4e1d16aa011f7f2777f66
Bug 552025 - Remove the instances of nsINavHistoryResultObserver.containerOpened/Closed. r=mak
Bug 774144 - Webapp uninstallation on Windows through mozapps uninstall function. r=tabraldes
Bug 993326 - Don't directly set the dom.mozApps.auto_confirm_install preference in test_operator_app_install. r=fabrice
Bug 993326 - Automatically restore apps launchable value. r=fabrice
Bug 993326 - Use SpecialPowers.autoConfirmAppInstall to confirm app installation and stop using the browser.mozApps.installer.dry_run pref. r=fabrice
Bug 991766 - Webapp uninstallation on Mac through mozapps uninstall function. r=myk, r=smichaud
Bug 997320 - Fix error in App Manager install cleanup. r=ochameau
Bug 987010 - Ignore alpha in Skia BGRX source surfaces - r=gwright
Bug 933432: Enable remote lookups for application on Windows (r=gcp)
Bug 967817 - Finish memory reporters for Web Audio. r=roc, njn
Bug 997795 - Cleanup decodings. r=dkeeler
Bug 996853: handle AUDIO_FORMAT_SILENCE in MediaPipeline and AudioSegment::WriteTo r=roc
Bug 997982: Mark xpcom/glue/tests/gtest/ as FAIL_ON_WARNINGS. r=froydnj