diff --git a/dom/html/HTMLMediaElement.cpp b/dom/html/HTMLMediaElement.cpp
index c337de74a946..4d5c90037464 100644
--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -2205,7 +2205,6 @@ public:
 
   explicit StreamCaptureTrackSource(MediaStreamTrackSource* aCapturedTrackSource)
     : MediaStreamTrackSource(aCapturedTrackSource->GetPrincipal(),
-                             true,
                              nsString())
     , mCapturedTrackSource(aCapturedTrackSource)
   {
@@ -2239,6 +2238,7 @@ public:
 
   void Stop() override
   {
+    // XXX fix in later patch
     NS_ERROR("We're reporting remote=true to not be stoppable. "
              "Stop() should not be called.");
   }
@@ -2276,7 +2276,6 @@ public:
 
   explicit DecoderCaptureTrackSource(HTMLMediaElement* aElement)
     : MediaStreamTrackSource(nsCOMPtr<nsIPrincipal>(aElement->GetCurrentPrincipal()).get(),
-                             true,
                              nsString())
     , mElement(aElement)
   {
@@ -2315,6 +2314,7 @@ public:
 
   void Stop() override
   {
+    // XXX Fix in later patch.
     NS_ERROR("We're reporting remote=true to not be stoppable. "
              "Stop() should not be called.");
   }
diff --git a/dom/media/MediaManager.cpp b/dom/media/MediaManager.cpp
index 76b46e492e9a..931f1158823f 100644
--- a/dom/media/MediaManager.cpp
+++ b/dom/media/MediaManager.cpp
@@ -1170,7 +1170,7 @@ public:
                          const MediaSourceEnum aSource,
                          const TrackID aTrackID,
                          const PeerIdentity* aPeerIdentity)
-          : MediaStreamTrackSource(aPrincipal, false, aLabel), mListener(aListener),
+          : MediaStreamTrackSource(aPrincipal, aLabel), mListener(aListener),
             mSource(aSource), mTrackID(aTrackID), mPeerIdentity(aPeerIdentity) {}
 
         MediaSourceEnum GetMediaSource() const override
diff --git a/dom/media/MediaStreamTrack.cpp b/dom/media/MediaStreamTrack.cpp
index ea34789d5ebe..8ccdeb90cea8 100644
--- a/dom/media/MediaStreamTrack.cpp
+++ b/dom/media/MediaStreamTrack.cpp
@@ -124,8 +124,7 @@ MediaStreamTrack::MediaStreamTrack(DOMMediaStream* aStream, TrackID aTrackID,
     mInputTrackID(aInputTrackID), mSource(aSource),
     mPrincipal(aSource->GetPrincipal()),
     mReadyState(MediaStreamTrackState::Live),
-    mEnabled(true), mRemote(aSource->IsRemote()),
-    mConstraints(aConstraints)
+    mEnabled(true), mConstraints(aConstraints)
 {
 
   GetSource().RegisterSink(this);
@@ -236,11 +235,6 @@ MediaStreamTrack::Stop()
     return;
   }
 
-  if (mRemote) {
-    LOG(LogLevel::Warning, ("MediaStreamTrack %p is remote. Can't be stopped.", this));
-    return;
-  }
-
   if (!mSource) {
     MOZ_ASSERT(false);
     return;
diff --git a/dom/media/MediaStreamTrack.h b/dom/media/MediaStreamTrack.h
index fd8b88b54a74..5ba5b435add7 100644
--- a/dom/media/MediaStreamTrack.h
+++ b/dom/media/MediaStreamTrack.h
@@ -61,10 +61,8 @@ public:
   };
 
   MediaStreamTrackSource(nsIPrincipal* aPrincipal,
-                         const bool aIsRemote,
                          const nsString& aLabel)
     : mPrincipal(aPrincipal),
-      mIsRemote(aIsRemote),
       mLabel(aLabel),
       mStopped(false)
   {
@@ -106,12 +104,6 @@ public:
    */
   virtual const PeerIdentity* GetPeerIdentity() const { return nullptr; }
 
-  /**
-   * Indicates whether the track is remote or not per the MediaCapture and
-   * Streams spec.
-   */
-  virtual bool IsRemote() const { return mIsRemote; }
-
   /**
    * MediaStreamTrack::GetLabel (see spec) calls through to here.
    */
@@ -164,7 +156,7 @@ public:
   void UnregisterSink(Sink* aSink)
   {
     MOZ_ASSERT(NS_IsMainThread());
-    if (mSinks.RemoveElement(aSink) && mSinks.IsEmpty() && !IsRemote()) {
+    if (mSinks.RemoveElement(aSink) && mSinks.IsEmpty()) {
       Stop();
       mStopped = true;
     }
@@ -193,14 +185,11 @@ protected:
   // Currently registered sinks.
   nsTArray<Sink*> mSinks;
 
-  // True if this is a remote track source, i.e., a PeerConnection.
-  const bool mIsRemote;
-
   // The label of the track we are the source of per the MediaStreamTrack spec.
   const nsString mLabel;
 
-  // True if this source is not remote, all MediaStreamTrack users have
-  // unregistered from this source and Stop() has been called.
+  // True if all MediaStreamTrack users have unregistered from this source and
+  // Stop() has been called.
   bool mStopped;
 };
 
@@ -213,14 +202,13 @@ public:
   explicit BasicUnstoppableTrackSource(nsIPrincipal* aPrincipal,
                                        const MediaSourceEnum aMediaSource =
                                          MediaSourceEnum::Other)
-    : MediaStreamTrackSource(aPrincipal, true, nsString())
+    : MediaStreamTrackSource(aPrincipal, nsString())
     , mMediaSource(aMediaSource)
   {}
 
   MediaSourceEnum GetMediaSource() const override { return mMediaSource; }
 
-  void
-  GetSettings(dom::MediaTrackSettings& aResult) override {}
+  void GetSettings(dom::MediaTrackSettings& aResult) override {}
 
   void Stop() override {}
 
@@ -485,7 +473,6 @@ protected:
   nsString mID;
   MediaStreamTrackState mReadyState;
   bool mEnabled;
-  const bool mRemote;
   dom::MediaTrackConstraints mConstraints;
 };
 
diff --git a/media/webrtc/signaling/src/peerconnection/PeerConnectionMedia.h b/media/webrtc/signaling/src/peerconnection/PeerConnectionMedia.h
index 35a6205f4098..4d5dd63bbec3 100644
--- a/media/webrtc/signaling/src/peerconnection/PeerConnectionMedia.h
+++ b/media/webrtc/signaling/src/peerconnection/PeerConnectionMedia.h
@@ -161,7 +161,7 @@ class RemoteTrackSource : public dom::MediaStreamTrackSource
 {
 public:
   explicit RemoteTrackSource(nsIPrincipal* aPrincipal, const nsString& aLabel)
-    : dom::MediaStreamTrackSource(aPrincipal, true, aLabel) {}
+    : dom::MediaStreamTrackSource(aPrincipal, aLabel) {}
 
   dom::MediaSourceEnum GetMediaSource() const override
   {
@@ -172,7 +172,11 @@ public:
   ApplyConstraints(nsPIDOMWindowInner* aWindow,
                    const dom::MediaTrackConstraints& aConstraints) override;
 
-  void Stop() override { NS_ERROR("Can't stop a remote source!"); }
+  void Stop() override
+  {
+    // XXX Fix in later patch.
+    NS_ERROR("Can't stop a remote source!");
+  }
 
   void SetPrincipal(nsIPrincipal* aPrincipal)
   {