update comments (flutter-webrtc#1164)

update comments

Author: ziminghua

android/src/main/java/com/cloudwebrtc/webrtc/MethodCallHandlerImpl.java

@@ -1262,7 +1262,7 @@ public void mediaStreamAddTrack(final String streamId, final String trackId, Res
           mediaStream.addTrack((VideoTrack) track);
           result.success(null);
         } else {
-          resultError("mediaStreamRemoveTrack", "mediaStreamAddTrack() track [" + trackId + "] has unsupported type: " + kind, result);
+          resultError("mediaStreamAddTrack", "mediaStreamAddTrack() track [" + trackId + "] has unsupported type: " + kind, result);
         }
       } else {
         resultError("mediaStreamAddTrack", "mediaStreamAddTrack() track [" + trackId + "] is null", result);
@@ -1285,13 +1285,13 @@ public void mediaStreamRemoveTrack(final String streamId, final String trackId,
           mediaStream.removeTrack((VideoTrack) track);
           result.success(null);
         } else {
-          resultError("mediaStreamRemoveTrack", "mediaStreamAddTrack() track [" + trackId + "] has unsupported type: " + kind, result);
+          resultError("mediaStreamRemoveTrack", "mediaStreamRemoveTrack() track [" + trackId + "] has unsupported type: " + kind, result);
         }
       } else {
-        resultError("mediaStreamRemoveTrack", "mediaStreamAddTrack() track [" + trackId + "] is null", result);
+        resultError("mediaStreamRemoveTrack", "mediaStreamRemoveTrack() track [" + trackId + "] is null", result);
       }
     } else {
-      resultError("mediaStreamRemoveTrack", "mediaStreamAddTrack() stream [" + streamId + "] is null", result);
+      resultError("mediaStreamRemoveTrack", "mediaStreamRemoveTrack() stream [" + streamId + "] is null", result);
     }
   }
 
@@ -1882,4 +1882,4 @@ void requestPermissions(
             activity,
             permissions.toArray(new String[permissions.size()]), callback);
   }
-}
+}