ash: Change auto to not deduce raw pointers.

ash/mus/user_window_controller_impl.cc

 // Copyright 2015 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 "ash/mus/user_window_controller_impl.h"
 
 #include "ash/common/shell_window_ids.h"
 #include "ash/mus/bridge/wm_window_mus.h"
 #include "ash/mus/property_util.h"
 #include "ash/mus/root_window_controller.h"
@@ skipping 107 matching lines @@
 }
 
 void UserWindowControllerImpl::AssignIdIfNecessary(::mus::Window* window) {
   if (window->GetLocalProperty(kUserWindowIdKey) == 0u)
     window->SetLocalProperty(kUserWindowIdKey, next_id_++);
 }
 
 void UserWindowControllerImpl::RemoveObservers(::mus::Window* user_container) {
   user_container->RemoveObserver(this);
   user_container->window_tree()->RemoveObserver(this);
-  for (auto iter : user_container->children())
+  for (auto* iter : user_container->children())
     iter->RemoveObserver(window_property_observer_.get());
 }
 
 ::mus::Window* UserWindowControllerImpl::GetUserWindowById(uint32_t id) {
   for (::mus::Window* window : GetUserWindowContainer()->children()) {
     if (window->GetLocalProperty(kUserWindowIdKey) == id)
       return window;
   }
   return nullptr;
 }
@@ skipping 60 matching lines @@
 }
 
 void UserWindowControllerImpl::FocusUserWindow(uint32_t window_id) {
   ::mus::Window* window = GetUserWindowById(window_id);
   if (window)
     window->SetFocus();
 }
 
 }  // namespace mus
 }  // namespace ash