Remove usage of FOR_EACH_OBSERVER macro in ui/wm/.

ui/wm/core/default_activation_client.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 "ui/wm/core/default_activation_client.h"
 
 #include "base/macros.h"
 #include "ui/aura/window.h"
 #include "ui/wm/public/activation_change_observer.h"
 #include "ui/wm/public/activation_delegate.h"
@@ skipping 60 matching lines @@
   aura::Window* last_active = GetActiveWindow();
   if (last_active == window)
     return;
 
   last_active_ = last_active;
   RemoveActiveWindow(window);
   active_windows_.push_back(window);
   window->parent()->StackChildAtTop(window);
   window->AddObserver(this);
 
-  FOR_EACH_OBSERVER(aura::client::ActivationChangeObserver, observers_,
-                    OnWindowActivated(reason, window, last_active));
+  for (auto& observer : observers_)
+    observer.OnWindowActivated(reason, window, last_active);
 
   aura::client::ActivationChangeObserver* observer =
       aura::client::GetActivationChangeObserver(last_active);
   if (observer) {
     observer->OnWindowActivated(reason, window, last_active);
   }
   observer = aura::client::GetActivationChangeObserver(window);
   if (observer) {
     observer->OnWindowActivated(reason, window, last_active);
   }
@@ skipping 65 matching lines @@
   for (unsigned int i = 0; i < active_windows_.size(); ++i) {
     if (active_windows_[i] == window) {
       active_windows_.erase(active_windows_.begin() + i);
       window->RemoveObserver(this);
       return;
     }
   }
 }
 
 }  // namespace wm