Bug 1270230 - Add media.navigator.video.use_tmmbr to all.js and pref on. r=jesup

MozReview-Commit-ID: CaI1Lc1Zd06

--HG--
extra : rebase_source : 13c97c5df99465019004dad5cabe44ad5319b9a7

modules/libpref/init/all.js

@@ -384,6 +384,7 @@ pref("media.navigator.load_adapt.low_load","0.40");
 pref("media.navigator.video.default_fps",30);
 pref("media.navigator.video.default_minfps",10);
 pref("media.navigator.video.use_remb", true);
+pref("media.navigator.video.use_tmmbr", true);
 
 
 pref("media.webrtc.debug.trace_mask", 0);