AppRTCDemo(android): don't initialize process-globals more than once.

BUG=3257
R=braveyao@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/19369004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6001 4adac7df-926f-26a2-2b94-8c16560cd09d

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

@@ -73,6 +73,7 @@ import java.util.regex.Pattern;
 public class AppRTCDemoActivity extends Activity
     implements AppRTCClient.IceServersObserver {
   private static final String TAG = "AppRTCDemoActivity";
+  private static boolean factoryStaticInitialized;
   private PeerConnectionFactory factory;
   private VideoSource videoSource;
   private boolean videoSourceStopped;
@@ -104,8 +105,11 @@ public class AppRTCDemoActivity extends Activity
     vsv = new VideoStreamsView(this, displaySize);
     setContentView(vsv);
 
-    abortUnless(PeerConnectionFactory.initializeAndroidGlobals(this),
+    if (!factoryStaticInitialized) {
+      abortUnless(PeerConnectionFactory.initializeAndroidGlobals(this),
         "Failed to initializeAndroidGlobals");
+      factoryStaticInitialized = true;
+    }
 
     AudioManager audioManager =
         ((AudioManager) getSystemService(AUDIO_SERVICE));