Bug 845592 - Adjust the New Window menu entries in permanent private browsing mode; r=gavin

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extra : rebase_source : c2bda2726ec2d8f63c20b69c5b7718f1403d619c
Bug 850970 - Set the initial value of gain nodes on the audio stream to make sure that they don't mute playback; r=roc

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extra : rebase_source : caf58ca903665f8b3014451926cec9772969663f
Bug 851338 - Implement AudioContext.currentTime; r=roc

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extra : rebase_source : 064da119e26ca15e361c003a4fabe7d3fe77e256
Bug 849988 - Implement support for a removable property for preinstalled apps to define if the app can be uninstalled or not r=ferjm
Bug 850713 - Bump the required NDK version to 9. r=blassey.bugs,mh+mozilla

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extra : rebase_source : d6886dcfe87747e77c3828289b1184a58e6a0c09
Bug 698328 - Add a new cubeb backend based on AudioTrack.cpp. r=kinetik

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extra : rebase_source : ec59b20cc746e052c1627285929138f34a349c00
Bug 851149 - Fix cubeb_sndio build after switchable-backends landing.  r=kinetik

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extra : rebase_source : 6130904c7e96e4a942eeaf87723d6766d70c3b55