Remove usage of FOR_EACH_OBSERVER macro in blimp

blimp/client/core/session/connection_status.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "blimp/client/core/session/connection_status.h"
 
 #include "base/metrics/histogram_macros.h"
 
 namespace blimp {
 namespace client {
@@ skipping 18 matching lines @@
   }
 }
 
 base::WeakPtr<ConnectionStatus> ConnectionStatus::GetWeakPtr() {
   return weak_factory_.GetWeakPtr();
 }
 
 void ConnectionStatus::OnConnected() {
   is_connected_ = true;
   UMA_HISTOGRAM_BOOLEAN("Blimp.Connected", true);
-  FOR_EACH_OBSERVER(NetworkEventObserver, connection_observers_, OnConnected());
+  for (auto& observer : connection_observers_)
+    observer.OnConnected();
 }
 
 void ConnectionStatus::OnDisconnected(int result) {
   is_connected_ = false;
   UMA_HISTOGRAM_BOOLEAN("Blimp.Connected", false);
-  FOR_EACH_OBSERVER(NetworkEventObserver, connection_observers_,
-                    OnDisconnected(result));
+  for (auto& observer : connection_observers_)
+    observer.OnDisconnected(result);
 }
 
 }  // namespace client
 }  // namespace blimp