Remove usage of FOR_EACH_OBSERVER macro in jingle

jingle/notifier/listener/fake_push_client.cc

Index: jingle/notifier/listener/fake_push_client.cc
diff --git a/jingle/notifier/listener/fake_push_client.cc b/jingle/notifier/listener/fake_push_client.cc
index 1106c932b7f3016abccc539c4b226f7072b62598..7225408ced75e36319eb6fa9fe4d3779daa92ba6 100644
--- a/jingle/notifier/listener/fake_push_client.cc
+++ b/jingle/notifier/listener/fake_push_client.cc
@@ -40,20 +40,20 @@ void FakePushClient::SendPing() {
 }
 
 void FakePushClient::EnableNotifications() {
-  FOR_EACH_OBSERVER(PushClientObserver, observers_,
-                    OnNotificationsEnabled());
+  for (auto& observer : observers_)
+    observer.OnNotificationsEnabled();
 }
 
 void FakePushClient::DisableNotifications(
     NotificationsDisabledReason reason) {
-  FOR_EACH_OBSERVER(PushClientObserver, observers_,
-                    OnNotificationsDisabled(reason));
+  for (auto& observer : observers_)
+    observer.OnNotificationsDisabled(reason);
 }
 
 void FakePushClient::SimulateIncomingNotification(
     const Notification& notification) {
-  FOR_EACH_OBSERVER(PushClientObserver, observers_,
-                    OnIncomingNotification(notification));
+  for (auto& observer : observers_)
+    observer.OnIncomingNotification(notification);
 }
 
 const SubscriptionList& FakePushClient::subscriptions() const {