Android VideoRendererGui: Add dispose function

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

Index: talk/examples/android/src/org/appspot/apprtc/CallActivity.java
diff --git a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
index 735f28e6cdb5d3b26bfd623a427122026f61b9fb..2b92ce7001668bd8528c3bdc7376861f3d5f2081 100644
--- a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
@@ -438,6 +438,7 @@ public class CallActivity extends Activity
     } 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();
   }