Remove usage of FOR_EACH_OBSERVER macro in apps/

apps/app_lifetime_monitor.cc

 // Copyright 2013 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 "apps/app_lifetime_monitor.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
@@ skipping 107 matching lines @@
   for (AppWindowRegistry::AppWindowList::const_iterator i = windows.begin();
        i != windows.end();
        ++i) {
     if (*i != app_window && !(*i)->is_hidden())
       return true;
   }
   return false;
 }
 
 void AppLifetimeMonitor::NotifyAppStart(const std::string& app_id) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppStart(profile_, app_id));
+  for (auto& observer : observers_)
+    observer.OnAppStart(profile_, app_id);
 }
 
 void AppLifetimeMonitor::NotifyAppActivated(const std::string& app_id) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppActivated(profile_, app_id));
+  for (auto& observer : observers_)
+    observer.OnAppActivated(profile_, app_id);
 }
 
 void AppLifetimeMonitor::NotifyAppDeactivated(const std::string& app_id) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppDeactivated(profile_, app_id));
+  for (auto& observer : observers_)
+    observer.OnAppDeactivated(profile_, app_id);
 }
 
 void AppLifetimeMonitor::NotifyAppStop(const std::string& app_id) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppStop(profile_, app_id));
+  for (auto& observer : observers_)
+    observer.OnAppStop(profile_, app_id);
 }
 
 void AppLifetimeMonitor::NotifyChromeTerminating() {
-  FOR_EACH_OBSERVER(Observer, observers_, OnChromeTerminating());
+  for (auto& observer : observers_)
+    observer.OnChromeTerminating();
 }
 
 }  // namespace apps