Bug 1525646 - Remove aTkhd arg from MoofParser::ParseMdia as it is unused. r=jya

Differential Revision: https://phabricator.services.mozilla.com/D19022

--HG--
extra : moz-landing-system : lando

dom/media/mp4/MoofParser.cpp

@@ -273,7 +273,7 @@ void MoofParser::ParseTrak(Box& aBox) {
     } else if (box.IsType("mdia")) {
       if (mTrackParseMode.is<ParseAllTracks>() ||
           tkhd.mTrackId == mTrackParseMode.as<uint32_t>()) {
-        ParseMdia(box, tkhd);
+        ParseMdia(box);
       }
     } else if (box.IsType("edts") &&
                (mTrackParseMode.is<ParseAllTracks>() ||
@@ -284,7 +284,7 @@ void MoofParser::ParseTrak(Box& aBox) {
   LOG_DEBUG(Trak, "Done.");
 }
 
-void MoofParser::ParseMdia(Box& aBox, Tkhd& aTkhd) {
+void MoofParser::ParseMdia(Box& aBox) {
   LOG_DEBUG(Mdia, "Starting.");
   for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
     if (box.IsType("mdhd")) {

dom/media/mp4/MoofParser.h

@@ -302,7 +302,7 @@ class MoofParser : public DecoderDoctorLifeLogger<MoofParser> {
   bool ReachedEnd();
   void ParseMoov(Box& aBox);
   void ParseTrak(Box& aBox);
-  void ParseMdia(Box& aBox, Tkhd& aTkhd);
+  void ParseMdia(Box& aBox);
   void ParseMvex(Box& aBox);
 
   void ParseMinf(Box& aBox);