Add flakiness check if there is no received packets in a certain period.

talk/app/webrtc/java/jni/peerconnection_jni.cc

Index: talk/app/webrtc/java/jni/peerconnection_jni.cc
diff --git a/talk/app/webrtc/java/jni/peerconnection_jni.cc b/talk/app/webrtc/java/jni/peerconnection_jni.cc
index 69078e6b7e9cbaf7cbc76b512185548174825bd5..cc362ef07118e2f34496ced82bc1735a7386badf 100644
--- a/talk/app/webrtc/java/jni/peerconnection_jni.cc
+++ b/talk/app/webrtc/java/jni/peerconnection_jni.cc
@@ -250,6 +250,14 @@ class PCOJava : public PeerConnectionObserver {
     CHECK_EXCEPTION(jni()) << "error during CallVoidMethod";
   }
 
+  void OnIceFlakinessChange(bool flaky) override {
+    ScopedLocalRefFrame local_ref_frame(jni());
+    jmethodID m = GetMethodID(
+        jni(), *j_observer_class_, "onIceFlakinessChange", "(Z)V");
+    jni()->CallVoidMethod(*j_observer_global_, m, flaky);
+    CHECK_EXCEPTION(jni()) << "error during CallVoidMethod";
+  }
+
   void OnIceGatheringChange(
       PeerConnectionInterface::IceGatheringState new_state) override {
     ScopedLocalRefFrame local_ref_frame(jni());