[mus+ash] Removes WmWindow from ash/wm/overview and ash/wm/workspace

ash/wm/overview/scoped_transform_overview_window.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 "ash/wm/overview/scoped_transform_overview_window.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/root_window_controller.h"
 #include "ash/wm/overview/scoped_overview_animation_settings.h"
 #include "ash/wm/overview/window_selector_item.h"
 #include "ash/wm/window_mirror_view.h"
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_util.h"
-#include "ash/wm_window.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/safe_integer_conversions.h"
 #include "ui/gfx/transform_util.h"
@@ skipping 400 matching lines @@
   DCHECK(!overview_started_);
   overview_started_ = true;
   wm::GetWindowState(window_)->set_ignored_by_shelf(true);
   if (window_->GetProperty(aura::client::kShowStateKey) ==
       ui::SHOW_STATE_MINIMIZED) {
     CreateMirrorWindowForMinimizedState();
   }
 }
 
 void ScopedTransformOverviewWindow::CloseWidget() {
-  WmWindow* parent_window = WmWindow::Get(GetTransientRoot(window_));
+  aura::Window* parent_window = GetTransientRoot(window_);
   if (parent_window)
-    parent_window->CloseWidget();
+    wm::CloseWidgetForWindow(parent_window);
 }
 
 // static
 void ScopedTransformOverviewWindow::SetImmediateCloseForTests() {
   immediate_close_for_tests = true;
 }
 
 aura::Window* ScopedTransformOverviewWindow::GetOverviewWindow() const {
   if (minimized_widget_)
     return GetOverviewWindowForMinimizedState();
@@ skipping 50 matching lines @@
   // In unit tests, the content view can have empty size.
   if (!preferred.IsEmpty()) {
     int inset = bounds.height() - preferred.height();
     bounds.Inset(0, 0, 0, inset);
   }
   minimized_widget_->SetBounds(bounds);
   minimized_widget_->Show();
 }
 
 }  // namespace ash