Renames WmWindowUserData and converts to using aura

ash/common/wm/screen_dimmer.cc

 // Copyright (c) 2012 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/common/wm/screen_dimmer.h"
 
+#include "ash/common/window_user_data.h"
 #include "ash/common/wm/container_finder.h"
 #include "ash/common/wm/window_dimmer.h"
-#include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
-#include "ash/common/wm_window_user_data.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shell.h"
 #include "base/memory/ptr_util.h"
+#include "ui/aura/window.h"
 
 namespace ash {
 namespace {
 
 // Opacity when it's dimming the entire screen.
 const float kDimmingLayerOpacityForRoot = 0.4f;
 
 // Opacity for lock screen.
 const float kDimmingLayerOpacityForLockScreen = 0.5f;
 
 }  // namespace
 
 ScreenDimmer::ScreenDimmer(Container container)
     : container_(container),
       is_dimming_(false),
       at_bottom_(false),
-      window_dimmers_(base::MakeUnique<WmWindowUserData<WindowDimmer>>()) {
+      window_dimmers_(base::MakeUnique<WindowUserData<WindowDimmer>>()) {
   Shell::GetInstance()->AddShellObserver(this);
 }
 
 ScreenDimmer::~ScreenDimmer() {
   // Usage in chrome results in ScreenDimmer outliving the shell.
   if (Shell::HasInstance())
     Shell::GetInstance()->RemoveShellObserver(this);
 }
 
 void ScreenDimmer::SetDimming(bool should_dim) {
   if (should_dim == is_dimming_)
     return;
   is_dimming_ = should_dim;
 
   Update(should_dim);
 }
 
-std::vector<WmWindow*> ScreenDimmer::GetAllContainers() {
+aura::Window::Windows ScreenDimmer::GetAllContainers() {
   return container_ == Container::ROOT
-             ? WmShell::Get()->GetAllRootWindows()
+             ? Shell::GetAllRootWindows()
              : wm::GetContainersFromAllRootWindows(
                    ash::kShellWindowId_LockScreenContainersContainer);
 }
 
 void ScreenDimmer::OnRootWindowAdded(WmWindow* root_window) {
   Update(is_dimming_);
 }
 
 void ScreenDimmer::Update(bool should_dim) {
-  for (WmWindow* container : GetAllContainers()) {
+  for (aura::Window* container : GetAllContainers()) {
     WindowDimmer* window_dimmer = window_dimmers_->Get(container);
     if (should_dim) {
       if (!window_dimmer) {
         window_dimmers_->Set(container,
                              base::MakeUnique<WindowDimmer>(container));
         window_dimmer = window_dimmers_->Get(container);
         window_dimmer->SetDimOpacity(container_ == Container::ROOT
                                          ? kDimmingLayerOpacityForRoot
                                          : kDimmingLayerOpacityForLockScreen);
       }
       if (at_bottom_)
         container->StackChildAtBottom(window_dimmer->window());
       else
         container->StackChildAtTop(window_dimmer->window());
       window_dimmer->window()->Show();
     } else if (window_dimmer) {
       window_dimmers_->Set(container, nullptr);
     }
   }
 }
 
 }  // namespace ash