Bug 1605134 - Switch the CrossGraphPort's log module to MediaTrackGraph. r=padenot

These MediaTrack used to subclass ForwardedInputTrack and that module is
legacy from that time. MediaTrackGraph makes more sense. We should reduce the
number of log modules around the graph and converge on the MTG one.

Differential Revision: https://phabricator.services.mozilla.com/D97834

dom/media/CrossGraphPort.cpp

@@ -18,9 +18,9 @@ namespace mozilla {
 #  undef LOG_TEST
 #endif
 
-extern LazyLogModule gForwardedInputTrackLog;
-#define LOG(type, msg) MOZ_LOG(gForwardedInputTrackLog, type, msg)
-#define LOG_TEST(type) MOZ_LOG_TEST(gForwardedInputTrackLog, type)
+extern LazyLogModule gMediaTrackGraphLog;
+#define LOG(type, msg) MOZ_LOG(gMediaTrackGraphLog, type, msg)
+#define LOG_TEST(type) MOZ_LOG_TEST(gMediaTrackGraphLog, type)
 
 UniquePtr<CrossGraphPort> CrossGraphPort::Connect(
     const RefPtr<dom::AudioStreamTrack>& aStreamTrack, AudioDeviceInfo* aSink,