Remove FOR_EACH_OBSERVER macro usage in chrome/browser/ui

chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc

Index: chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
diff --git a/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc b/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
index db3e6e339e7f994111e2324b4add8d1814e995c7..deea5f9a0e71fa6891b4e69d83ea438576d8bc32 100644
--- a/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
+++ b/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
@@ -327,7 +327,8 @@ void MultiUserWindowManagerChromeOS::SetWindowOwner(
   AddTransientOwnerRecursive(window, window);
 
   // Notify entry adding.
-  FOR_EACH_OBSERVER(Observer, observers_, OnOwnerEntryAdded(window));
+  for (Observer& observer : observers_)
+    observer.OnOwnerEntryAdded(window);
 
   if (!IsWindowOnDesktopOfUser(window, current_account_id_))
     SetWindowVisibility(window, false, 0);
@@ -460,7 +461,8 @@ void MultiUserWindowManagerChromeOS::OnWindowDestroyed(aura::Window* window) {
   window_to_entry_.erase(window);
 
   // Notify entry change.
-  FOR_EACH_OBSERVER(Observer, observers_, OnOwnerEntryRemoved(window));
+  for (Observer& observer : observers_)
+    observer.OnOwnerEntryRemoved(window);
 }
 
 void MultiUserWindowManagerChromeOS::OnWindowVisibilityChanging(
@@ -587,7 +589,8 @@ bool MultiUserWindowManagerChromeOS::ShowWindowForUserIntern(
   }
 
   // Notify entry change.
-  FOR_EACH_OBSERVER(Observer, observers_, OnOwnerEntryChanged(window));
+  for (Observer& observer : observers_)
+    observer.OnOwnerEntryChanged(window);
   return true;
 }
 
@@ -632,7 +635,8 @@ void MultiUserWindowManagerChromeOS::SetWindowVisibility(
 }
 
 void MultiUserWindowManagerChromeOS::NotifyAfterUserSwitchAnimationFinished() {
-  FOR_EACH_OBSERVER(Observer, observers_, OnUserSwitchAnimationFinished());
+  for (Observer& observer : observers_)
+    observer.OnUserSwitchAnimationFinished();
 }
 
 void MultiUserWindowManagerChromeOS::AddBrowserWindow(Browser* browser) {