[ash-md] Makes sure that minimized windows can be activated in overview

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 424 matching lines @@
   transform_window_.RestoreWindow();
   if (background_view_) {
     background_view_->OnItemRestored();
     background_view_ = nullptr;
   }
   UpdateHeaderLayout(
       HeaderFadeInMode::EXIT,
       OverviewAnimationType::OVERVIEW_ANIMATION_LAY_OUT_SELECTOR_ITEMS);
 }
 
+void WindowSelectorItem::EnsureVisible() {
+  transform_window_.EnsureVisible();
+}
+
 void WindowSelectorItem::Shutdown() {
   if (transform_window_.GetTopInset()) {
     // Activating a window (even when it is the window that was active before
     // overview) results in stacking it at the top. Maintain the label window
     // stacking position above the item to make the header transformation more
     // gradual upon exiting the overview mode.
     WmWindow* widget_window =
         WmLookup::Get()->GetWindowForWidget(item_widget_.get());
 
     // |widget_window| was originally created in the same container as the
@@ skipping 93 matching lines @@
 }
 
 void WindowSelectorItem::ButtonPressed(views::Button* sender,
                                        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(transform_window_.window());
+  window_selector_->SelectWindow(this);
 }
 
 void WindowSelectorItem::OnWindowDestroying(WmWindow* window) {
   window->RemoveObserver(this);
   transform_window_.OnWindowDestroyed();
 }
 
 void WindowSelectorItem::OnWindowTitleChanged(WmWindow* 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.
@@ skipping 219 matching lines @@
 
 gfx::SlideAnimation* WindowSelectorItem::GetBackgroundViewAnimation() {
   return background_view_ ? background_view_->animation() : nullptr;
 }
 
 WmWindow* WindowSelectorItem::GetOverviewWindowForMinimizedStateForTest() {
   return transform_window_.GetOverviewWindowForMinimizedState();
 }
 
 }  // namespace ash