Move talk/app/webrtc to webrtc/api

webrtc/api/java/src/org/webrtc/SdpObserver.java

 /*
  * libjingle
  * Copyright 2013 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 23 matching lines @@
 
   /** Called on success of Set{Local,Remote}Description(). */
   public void onSetSuccess();
 
   /** Called on error of Create{Offer,Answer}(). */
   public void onCreateFailure(String error);
 
   /** Called on error of Set{Local,Remote}Description(). */
   public void onSetFailure(String error);
 }