Android: Move common functions from VideoRendererGui to new RendererCommon file

webrtc/examples/androidapp/src/org/appspot/apprtc/CallActivity.java

 /*
  *  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.
  */
 
@@ skipping 15 matching lines @@
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
 import android.view.Window;
 import android.view.WindowManager.LayoutParams;
 import android.widget.Toast;
 
 import org.webrtc.IceCandidate;
 import org.webrtc.SessionDescription;
 import org.webrtc.StatsReport;
+import org.webrtc.RendererCommon.ScalingType;
 import org.webrtc.VideoRenderer;
 import org.webrtc.VideoRendererGui;
-import org.webrtc.VideoRendererGui.ScalingType;
 
 /**
  * Activity for peer connection call setup, call waiting
  * and call view.
  */
 public class CallActivity extends Activity
     implements AppRTCClient.SignalingEvents,
       PeerConnectionClient.PeerConnectionEvents,
       CallFragment.OnCallEvents {
 
@@ skipping 590 matching lines @@
         }
       }
     });
   }
 
   @Override
   public void onPeerConnectionError(final String description) {
     reportError(description);
   }
 }