Move /webrtc/api/android files to /webrtc/sdk/android

webrtc/api/android/java/src/org/webrtc/AudioTrack.java

Index: webrtc/api/android/java/src/org/webrtc/AudioTrack.java
diff --git a/webrtc/api/android/java/src/org/webrtc/AudioTrack.java b/webrtc/api/android/java/src/org/webrtc/AudioTrack.java
deleted file mode 100644
index c33a9d8db1d83aa1988520119361afc7284c414d..0000000000000000000000000000000000000000
--- a/webrtc/api/android/java/src/org/webrtc/AudioTrack.java
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- *  Copyright 2013 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.
- */
-
-package org.webrtc;
-
-/** Java wrapper for a C++ AudioTrackInterface */
-public class AudioTrack extends MediaStreamTrack {
-  public AudioTrack(long nativeTrack) {
-    super(nativeTrack);
-  }
-}