VideoCapturerAndroidTest: Dispose PeerConnectionFactory with pending frames

talk/app/webrtc/androidtests/src/org/webrtc/VideoCapturerAndroidTest.java

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 387 matching lines @@
     final PeerConnectionFactory factory = new PeerConnectionFactory();
     final VideoSource source = factory.createVideoSource(capturer, new MediaConstraints());
     final VideoTrack track = factory.createVideoTrack("dummy", source);
     final FakeAsyncRenderer renderer = new FakeAsyncRenderer();
     track.addRenderer(new VideoRenderer(renderer));
     // Wait for at least one frame that has not been returned.
     assertFalse(renderer.waitForPendingFrames().isEmpty());
 
     capturer.stopCapture();
 
-    // Dispose source and |capturer|.
+    // Dispose everything.
     track.dispose();
     source.dispose();
+    factory.dispose();
+
     // The pending frames should keep the JNI parts and |capturer| alive.
     assertFalse(capturer.isReleased());
 
     // Return the frame(s), on a different thread out of spite.
     final List<I420Frame> pendingFrames = renderer.waitForPendingFrames();
     final Thread returnThread = new Thread(new Runnable() {
       @Override
       public void run() {
         for (I420Frame frame : pendingFrames) {
           VideoRenderer.renderFrameDone(frame);
         }
       }
     });
     returnThread.start();
     returnThread.join();
 
     // Check that frames have successfully returned. This will cause |capturer| to be released.
     assertTrue(capturer.isReleased());
-
-    factory.dispose();
   }
 }