Replace WmWindowObserver with aura::WindowObserver.

ash/common/wm/overview/window_selector_item.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/common/wm/overview/window_selector_item.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/common/material_design/material_design_controller.h"
@@ skipping 399 matching lines @@
       root_window_(window->GetRootWindow()),
       transform_window_(window),
       in_bounds_update_(false),
       selected_(false),
       caption_container_view_(nullptr),
       label_view_(nullptr),
       close_button_(new OverviewCloseButton(this)),
       window_selector_(window_selector),
       background_view_(nullptr) {
   CreateWindowLabel(window->GetTitle());
-  GetWindow()->AddObserver(this);
+  GetWindow()->aura_window()->AddObserver(this);
 }
 
 WindowSelectorItem::~WindowSelectorItem() {
-  GetWindow()->RemoveObserver(this);
+  GetWindow()->aura_window()->RemoveObserver(this);
 }
 
 WmWindow* WindowSelectorItem::GetWindow() {
   return transform_window_.window();
 }
 
 void WindowSelectorItem::RestoreWindow() {
   caption_container_view_->listener_button()->ResetListener();
   close_button_->ResetListener();
   transform_window_.RestoreWindow();
@@ skipping 106 matching lines @@
                                        const ui::Event& event) {
   if (sender == close_button_) {
     WmShell::Get()->RecordUserMetricsAction(UMA_WINDOW_OVERVIEW_CLOSE_BUTTON);
     CloseWindow();
     return;
   }
   CHECK(sender == caption_container_view_->listener_button());
   window_selector_->SelectWindow(this);
 }
 
-void WindowSelectorItem::OnWindowDestroying(WmWindow* window) {
+void WindowSelectorItem::OnWindowDestroying(aura::Window* window) {
   window->RemoveObserver(this);
   transform_window_.OnWindowDestroyed();
 }
 
-void WindowSelectorItem::OnWindowTitleChanged(WmWindow* window) {
+void WindowSelectorItem::OnWindowTitleChanged(aura::Window* window) {
   // TODO(flackr): Maybe add the new title to a vector of titles so that we can
   // filter any of the titles the window had while in the overview session.
   label_view_->SetText(window->GetTitle());
   UpdateAccessibilityName();
 }
 
 float WindowSelectorItem::GetItemScale(const gfx::Size& size) {
   gfx::Size inset_size(size.width(), size.height() - 2 * kWindowMargin);
   return ScopedTransformOverviewWindow::GetItemScale(
       transform_window_.GetTargetBoundsInScreen().size(), inset_size,
@@ skipping 194 matching lines @@
 
 gfx::SlideAnimation* WindowSelectorItem::GetBackgroundViewAnimation() {
   return background_view_ ? background_view_->animation() : nullptr;
 }
 
 WmWindow* WindowSelectorItem::GetOverviewWindowForMinimizedStateForTest() {
   return transform_window_.GetOverviewWindowForMinimizedState();
 }
 
 }  // namespace ash