Reduce FOR_EACH_OBSERVER usage in extensions

extensions/browser/app_window/app_window_registry.cc

 // Copyright 2014 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 "extensions/browser/app_window/app_window_registry.h"
 
 #include <string>
 #include <vector>
 
 #include "base/strings/stringprintf.h"
@@ skipping 44 matching lines @@
   content::DevToolsAgentHost::RemoveAgentStateCallback(devtools_callback_);
 }
 
 // static
 AppWindowRegistry* AppWindowRegistry::Get(content::BrowserContext* context) {
   return Factory::GetForBrowserContext(context, true /* create */);
 }
 
 void AppWindowRegistry::AddAppWindow(AppWindow* app_window) {
   BringToFront(app_window);
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppWindowAdded(app_window));
+  for (auto& observer : observers_)
+    observer.OnAppWindowAdded(app_window);
 }
 
 void AppWindowRegistry::AppWindowIconChanged(AppWindow* app_window) {
   AddAppWindowToList(app_window);
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppWindowIconChanged(app_window));
+  for (auto& observer : observers_)
+    observer.OnAppWindowIconChanged(app_window);
 }
 
 void AppWindowRegistry::AppWindowActivated(AppWindow* app_window) {
   BringToFront(app_window);
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppWindowActivated(app_window));
+  for (auto& observer : observers_)
+    observer.OnAppWindowActivated(app_window);
 }
 
 void AppWindowRegistry::AppWindowHidden(AppWindow* app_window) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppWindowHidden(app_window));
+  for (auto& observer : observers_)
+    observer.OnAppWindowHidden(app_window);
 }
 
 void AppWindowRegistry::AppWindowShown(AppWindow* app_window, bool was_hidden) {
-  FOR_EACH_OBSERVER(Observer, observers_,
-                    OnAppWindowShown(app_window, was_hidden));
+  for (auto& observer : observers_)
+    observer.OnAppWindowShown(app_window, was_hidden);
 }
 
 void AppWindowRegistry::RemoveAppWindow(AppWindow* app_window) {
   const AppWindowList::iterator it =
       std::find(app_windows_.begin(), app_windows_.end(), app_window);
   if (it != app_windows_.end())
     app_windows_.erase(it);
-  FOR_EACH_OBSERVER(Observer, observers_, OnAppWindowRemoved(app_window));
+  for (auto& observer : observers_)
+    observer.OnAppWindowRemoved(app_window);
 }
 
 void AppWindowRegistry::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void AppWindowRegistry::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
@@ skipping 158 matching lines @@
 bool AppWindowRegistry::Factory::ServiceIsNULLWhileTesting() const {
   return false;
 }
 
 content::BrowserContext* AppWindowRegistry::Factory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
 }
 
 }  // namespace extensions