[ash-md] Animates a window closed while in overview mode

ash/common/wm/overview/window_selector_item.h

 // 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.
 
 #ifndef ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_
 #define ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
@@ skipping 122 matching lines @@
                          OverviewAnimationType animation_type);
 
   // Creates the window label.
   void CreateWindowLabel(const base::string16& title);
 
   // Updates the close button's and title label's bounds. Any change in bounds
   // will be animated from the current bounds to the new bounds as per the
   // |animation_type|.
   void UpdateHeaderLayout(OverviewAnimationType animation_type);
 
+  // Animates opacity of the transformed window and its caption to |opacity|

[tdanderson, 2016/06/28 15:28:02]

nit: "of |transform_window_| rather than 'of the transformed window'"

[varkha, 2016/06/28 23:50:36]

Done.

+  // using |animation_type|.
+  void AnimateOpacity(float opacity, OverviewAnimationType animation_type);
+
   // Updates the close buttons accessibility name.
   void UpdateCloseButtonAccessibilityName();
 
   // True if the item is being shown in the overview, false if it's being
   // filtered.
   bool dimmed_;
 
   // The root window this item is being displayed on.
   WmWindow* root_window_;
 
@@ skipping 35 matching lines @@
   // Pointer to the WindowSelector that owns the WindowGrid containing |this|.
   // Guaranteed to be non-null for the lifetime of |this|.
   WindowSelector* window_selector_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSelectorItem);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_