Bug 1407487 - P2: Enable cubeb remoting on Nightly. r=kinetik

MozReview-Commit-ID: AKlAsy5nlgL

--HG--
extra : rebase_source : 66792537e96929b10d4b0980f6e09e2e075299cc

modules/libpref/init/all.js

@@ -640,6 +640,11 @@ pref("media.decoder.skip-to-next-key-frame.enabled", true);
 // "verbose", "normal" and "" (log disabled).
 pref("media.cubeb.logging_level", "");
 
+#ifdef NIGHTLY_BUILD
+// Cubeb sandbox (remoting) control
+pref("media.cubeb.sandbox", true);
+#endif
+
 // Set to true to force demux/decode warnings to be treated as errors.
 pref("media.playback.warnings-as-errors", false);