Android VideoRendererGui: Add dispose function

talk/examples/android/src/org/appspot/apprtc/CallActivity.java

 /*
  * libjingle
  * Copyright 2015 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 420 matching lines @@
     }
     if (audioManager != null) {
       audioManager.close();
       audioManager = null;
     }
     if (iceConnected && !isError) {
       setResult(RESULT_OK);
     } else {
       setResult(RESULT_CANCELED);
     }
+    VideoRendererGui.dispose();

[AlexG, 2015/08/05 18:19:23]

nit: Move before setResult() - we first dispose/close everythinh, then setResult
and exit.

[magjed_webrtc, 2015/08/11 10:38:16]

I moved it to onDestroy() instead. I think that makes sense, because
VideoRendererGui.setView() and VideoRendererGui.create() is called in
onCreate().

     finish();
   }
 
   private void disconnectWithErrorMessage(final String errorMessage) {
     if (commandLineRun || !activityRunning) {
       Log.e(TAG, "Critical error: " + errorMessage);
       disconnect();
     } else {
       new AlertDialog.Builder(this)
           .setTitle(getText(R.string.channel_error_title))
@@ skipping 204 matching lines @@
         }
       }
     });
   }
 
   @Override
   public void onPeerConnectionError(final String description) {
     reportError(description);
   }
 }