Bug 1341409: Fix omission of advanced constraints in applying camera constraints. r=jesup

MozReview-Commit-ID: 2qhuv5e6lv9

--HG--
extra : rebase_source : a25747eb160ddd71a241e0f479c7b226cd0e0a6d

dom/media/webrtc/MediaTrackConstraints.cpp

@@ -297,6 +297,10 @@ NormalizedConstraints::NormalizedConstraints(
   : NormalizedConstraintSet(*aOthers[0])
   , mBadConstraint(nullptr)
 {
+  for (auto& entry : aOthers[0]->mAdvanced) {
+    mAdvanced.push_back(entry);
+  }
+
   // Create a list of member pointers.
   nsTArray<MemberPtrType> list;
   NormalizedConstraints dummy(dom::MediaTrackConstraints(), &list);