Implement standalone event tracing in AppRTCDemo.

webrtc/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java

 /*
  *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 231 matching lines @@
     client.createPeerConnection(decodeToTexture ? eglBase.getContext() : null,
         localRenderer, remoteRenderer, signalingParameters);
     client.createOffer();
     return client;
   }
 
   private PeerConnectionParameters createParameters(boolean enableVideo,
       String videoCodec) {
     PeerConnectionParameters peerConnectionParameters =
         new PeerConnectionParameters(
-            enableVideo, true, // videoCallEnabled, loopback.
+            enableVideo, true, false, // videoCallEnabled, loopback, tracing.
             0, 0, 0, 0, videoCodec, true, false, // video codec parameters.
             0, "OPUS", false, false); // audio codec parameters.
     return peerConnectionParameters;
   }
 
   @Override
   public void setUp() {
     signalingExecutor = new LooperExecutor();
     signalingExecutor.requestStart();
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
@@ skipping 202 matching lines @@
           localRenderer.waitForFramesRendered(WAIT_TIMEOUT));
       assertTrue("Remote video frames were not rendered after video restart.",
           remoteRenderer.waitForFramesRendered(WAIT_TIMEOUT));
     }
     pcClient.close();
     assertTrue(waitForPeerConnectionClosed(WAIT_TIMEOUT));
     Log.d(TAG, "testVideoSourceRestart done.");
   }
 
 }