Reduce usage of FOR_EACH_OBSERVER macro in chrome/browser/signin

chrome/browser/signin/signin_manager_factory.cc

 // Copyright (c) 2012 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 "chrome/browser/signin/signin_manager_factory.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/account_fetcher_service_factory.h"
@@ skipping 82 matching lines @@
 void SigninManagerFactory::AddObserver(Observer* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void SigninManagerFactory::RemoveObserver(Observer* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 void SigninManagerFactory::NotifyObserversOfSigninManagerCreationForTesting(
     SigninManagerBase* manager) {
-  FOR_EACH_OBSERVER(Observer, observer_list_, SigninManagerCreated(manager));
+  for (Observer& observer : observer_list_)
+    observer.SigninManagerCreated(manager);
 }
 
 KeyedService* SigninManagerFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   SigninManagerBase* service = NULL;
   Profile* profile = static_cast<Profile*>(context);
   SigninClient* client =
       ChromeSigninClientFactory::GetInstance()->GetForProfile(profile);
 #if defined(OS_CHROMEOS)
   service = new SigninManagerBase(
       client,
       AccountTrackerServiceFactory::GetForProfile(profile));
 #else
   service = new SigninManager(
       client,
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile),
       AccountTrackerServiceFactory::GetForProfile(profile),
       GaiaCookieManagerServiceFactory::GetForProfile(profile));
   AccountFetcherServiceFactory::GetForProfile(profile);
 #endif
   service->Initialize(g_browser_process->local_state());
-  FOR_EACH_OBSERVER(Observer, observer_list_, SigninManagerCreated(service));
+  for (Observer& observer : observer_list_)
+    observer.SigninManagerCreated(service);
   return service;
 }
 
 void SigninManagerFactory::BrowserContextShutdown(
     content::BrowserContext* context) {
   SigninManagerBase* manager = static_cast<SigninManagerBase*>(
       GetServiceForBrowserContext(context, false));
-  if (manager)
-    FOR_EACH_OBSERVER(Observer, observer_list_, SigninManagerShutdown(manager));
+  if (manager) {
+    for (Observer& observer : observer_list_)
+      observer.SigninManagerShutdown(manager);
+  }
   BrowserContextKeyedServiceFactory::BrowserContextShutdown(context);
 }