Remove usage of FOR_EACH_OBSERVER macro in ui/app_list

ui/app_list/views/top_icon_animation_view.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 "ui/app_list/views/top_icon_animation_view.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/image/image_skia_operations.h"
@@ skipping 64 matching lines @@
 gfx::Size TopIconAnimationView::GetPreferredSize() const {
   return icon_size_;
 }
 
 void TopIconAnimationView::Layout() {
   icon_->SetBoundsRect(GetContentsBounds());
 }
 
 void TopIconAnimationView::OnImplicitAnimationsCompleted() {
   SetVisible(false);
-  FOR_EACH_OBSERVER(TopIconAnimationObserver,
-                    observers_,
-                    OnTopIconAnimationsComplete());
+  for (auto& observer : observers_)
+    observer.OnTopIconAnimationsComplete();
   base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this);
 }
 
 bool TopIconAnimationView::RequiresNotificationWhenAnimatorDestroyed() const {
   return true;
 }
 
 }  // namespace app_list