Create network change notifier.

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 5fa1617644d048e0933c947a5e8002fa63b6c970..9a2054a2b26e38d5880570f0646741958d5f7280 100644
--- a/talk/app/webrtc/java/jni/peerconnection_jni.cc
+++ b/talk/app/webrtc/java/jni/peerconnection_jni.cc
@@ -74,6 +74,7 @@
 #include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/logsinks.h"
+#include "webrtc/base/networkchangenotifier.h"
 #include "webrtc/base/messagequeue.h"
 #include "webrtc/base/ssladapter.h"
 #include "webrtc/base/stringutils.h"
@@ -1102,6 +1103,9 @@ JOW(jlong, PeerConnectionFactory_nativeCreatePeerConnectionFactory)(
     encoder_factory = new MediaCodecVideoEncoderFactory();
     decoder_factory = new MediaCodecVideoDecoderFactory();
   }
+  rtc::NetworkChangeNotifierFactory* network_change_notifier_factory =
+      rtc::NetworkChangeNotifierFactory::CreateFactory();
+  rtc::NetworkChangeNotifier::SetFactory(network_change_notifier_factory);
 #endif
   rtc::scoped_refptr<PeerConnectionFactoryInterface> factory(
       webrtc::CreatePeerConnectionFactory(worker_thread,
@@ -1871,4 +1875,24 @@ JOW(jbyteArray, CallSessionFileRotatingLogSink_nativeGetLogData)(
   return result;
 }
 
+JOW(jlong, NetworkChangeNotifier_nativeCreateNetworkChangeNotifier)(
+    JNIEnv* jni, jobject j_notifier) {
+  rtc::NetworkChangeNotifierFactory* factory =
+      rtc::NetworkChangeNotifier::GetFactory();
+  if (factory == nullptr) {
+    return 0L;
+  }
+  rtc::NetworkChangeNotifierDelegate* delegate = factory->CreateDelegate();
+  return jlongFromPointer(delegate);
+}
+
+JOW(void, NetworkChangeNotifier_nativeNotifyConnectionTypeChanged)(
+    JNIEnv* jni, jobject j_notifier, jlong j_native_notifier) {
+  rtc::NetworkChangeNotifierDelegate* delegate =
+      reinterpret_cast<rtc::NetworkChangeNotifierDelegate*>(j_native_notifier);
+  if (delegate != nullptr) {
+    delegate->OnNetworkChangeNotified();
+  }
+}
+
 }  // namespace webrtc_jni