Move WeakPtrFactory members in jingle/ classes to the correct locations.

jingle/notifier/listener/non_blocking_push_client.h

Index: jingle/notifier/listener/non_blocking_push_client.h
diff --git a/jingle/notifier/listener/non_blocking_push_client.h b/jingle/notifier/listener/non_blocking_push_client.h
index f5c6bc48e095a05e406115b794d2538260bf08c5..b49ae03b5d8ad2102a05c133bc03d52e4552aca4 100644
--- a/jingle/notifier/listener/non_blocking_push_client.h
+++ b/jingle/notifier/listener/non_blocking_push_client.h
@@ -60,12 +60,13 @@ class NonBlockingPushClient : public PushClient {
   void OnPingResponse();
 
   base::ThreadChecker thread_checker_;
-  base::WeakPtrFactory<NonBlockingPushClient> weak_ptr_factory_;
   const scoped_refptr<base::SingleThreadTaskRunner> delegate_task_runner_;
-  const scoped_refptr<Core> core_;
+  scoped_refptr<Core> core_;
 
   ObserverList<PushClientObserver> observers_;
 
+  base::WeakPtrFactory<NonBlockingPushClient> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(NonBlockingPushClient);
 };