Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

sdk/android/api/org/webrtc/RtpSender.java

@@ -0,0 +1,103 @@
+/*
+ *  Copyright 2015 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++ RtpSenderInterface. */
+public class RtpSender {
+  final long nativeRtpSender;
+
+  private MediaStreamTrack cachedTrack;
+  private boolean ownsTrack = true;
+
+  private final DtmfSender dtmfSender;
+
+  public RtpSender(long nativeRtpSender) {
+    this.nativeRtpSender = nativeRtpSender;
+    long track = nativeGetTrack(nativeRtpSender);
+    // It may be possible for an RtpSender to be created without a track.
+    cachedTrack = (track != 0) ? new MediaStreamTrack(track) : null;
+
+    long nativeDtmfSender = nativeGetDtmfSender(nativeRtpSender);
+    dtmfSender = (nativeDtmfSender != 0) ? new DtmfSender(nativeDtmfSender) : null;
+  }
+
+  /**
+   * Starts sending a new track, without requiring additional SDP negotiation.
+   * <p>
+   * Note: This is equivalent to replaceTrack in the official WebRTC API. It
+   * was just implemented before the standards group settled on a name.
+   *
+   * @param takeOwnership If true, the RtpSender takes ownership of the track
+   *                      from the caller, and will auto-dispose of it when no
+   *                      longer needed. |takeOwnership| should only be used if
+   *                      the caller owns the track; it is not appropriate when
+   *                      the track is owned by, for example, another RtpSender
+   *                      or a MediaStream.
+   * @return              true on success and false on failure.
+   */
+  public boolean setTrack(MediaStreamTrack track, boolean takeOwnership) {
+    if (!nativeSetTrack(nativeRtpSender, (track == null) ? 0 : track.nativeTrack)) {
+      return false;
+    }
+    if (cachedTrack != null && ownsTrack) {
+      cachedTrack.dispose();
+    }
+    cachedTrack = track;
+    ownsTrack = takeOwnership;
+    return true;
+  }
+
+  public MediaStreamTrack track() {
+    return cachedTrack;
+  }
+
+  public boolean setParameters(RtpParameters parameters) {
+    return nativeSetParameters(nativeRtpSender, parameters);
+  }
+
+  public RtpParameters getParameters() {
+    return nativeGetParameters(nativeRtpSender);
+  }
+
+  public String id() {
+    return nativeId(nativeRtpSender);
+  }
+
+  public DtmfSender dtmf() {
+    return dtmfSender;
+  }
+
+  public void dispose() {
+    if (dtmfSender != null) {
+      dtmfSender.dispose();
+    }
+    if (cachedTrack != null && ownsTrack) {
+      cachedTrack.dispose();
+    }
+    JniCommon.nativeReleaseRef(nativeRtpSender);
+  }
+
+  private static native boolean nativeSetTrack(long nativeRtpSender, long nativeTrack);
+
+  // This should increment the reference count of the track.
+  // Will be released in dispose() or setTrack().
+  private static native long nativeGetTrack(long nativeRtpSender);
+
+  // This should increment the reference count of the DTMF sender.
+  // Will be released in dispose().
+  private static native long nativeGetDtmfSender(long nativeRtpSender);
+
+  private static native boolean nativeSetParameters(long nativeRtpSender, RtpParameters parameters);
+
+  private static native RtpParameters nativeGetParameters(long nativeRtpSender);
+
+  private static native String nativeId(long nativeRtpSender);
+};