ash: Change auto to not deduce raw pointers.

ash/mus/window_manager.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/window_manager.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 202 matching lines @@
 }
 
 ::mus::Window* WindowManager::OnWmCreateTopLevelWindow(
     std::map<std::string, std::vector<uint8_t>>* properties) {
   return NewTopLevelWindow(properties);
 }
 
 void WindowManager::OnWmClientJankinessChanged(
     const std::set<::mus::Window*>& client_windows,
     bool janky) {
-  for (auto window : client_windows)
+  for (auto* window : client_windows)
     SetWindowIsJanky(window, janky);
 }
 
 void WindowManager::OnWmNewDisplay(::mus::Window* window,
                                    const display::Display& display) {
   CreateRootWindowController(window, display);
 }
 
 void WindowManager::OnAccelerator(uint32_t id, const ui::Event& event) {
   switch (id) {
     case kWindowSwitchAccelerator:
       window_manager_client()->ActivateNextWindow();
       break;
     default:
       window_manager_app_->OnAccelerator(id, event);
       break;
   }
 }
 
 }  // namespace mus
 }  // namespace ash