Use mirror layer for minimized windows 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 79 matching lines @@
 
   // Returns true if |target| is contained in this WindowSelectorItem.
   bool Contains(const WmWindow* target) const;
 
   // Restores and animates the managed window to its non overview mode state.
   void RestoreWindow();
 
   // Restores stacking of window captions above the windows, then fades out.
   void Shutdown();
 
-  // Forces the managed window to be shown (ie not hidden or minimized) when
-  // calling RestoreWindow().
-  void ShowWindowOnExit();
-
   // Dispatched before beginning window overview. This will do any necessary
   // one time actions such as restoring minimized windows.
   void PrepareForOverview();
 
   // Calculates and returns an optimal scale ratio. With MD this is only
   // taking into account |size.height()| as the width can vary. Without MD this
   // returns the scale that allows the item to fully fit within |size|.
   float GetItemScale(const gfx::Size& size);
 
   // Returns the union of the original target bounds of all transformed windows
@@ skipping 17 matching lines @@
   // so that it's highlighted and announced if accessibility features are
   // enabled.
   void SendAccessibleSelectionEvent();
 
   // Closes |transform_window_|.
   void CloseWindow();
 
   // Hides the original window header.
   void HideHeader();
 
+  // Called when the window is minimized or unminimized.
+  void OnMinimizedStateChanged();
+
   // Sets if the item is dimmed in the overview. Changing the value will also
   // change the visibility of the transform windows.
   void SetDimmed(bool dimmed);
   bool dimmed() const { return dimmed_; }
 
   const gfx::Rect& target_bounds() const { return target_bounds_; }
 
   // views::ButtonListener:
   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
@@ skipping 42 matching lines @@
 
   // Updates the close buttons accessibility name.
   void UpdateCloseButtonAccessibilityName();
 
   // Fades out a window caption when exiting overview mode.
   void FadeOut(std::unique_ptr<views::Widget> widget);
 
   // Allows a test to directly set animation state.
   gfx::SlideAnimation* GetBackgroundViewAnimation();
 
+  WmWindow* GetOverviewWindowForMinimizedStateForTest();
+
   // 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_;
 
   // The contained Window's wrapper.
   ScopedTransformOverviewWindow transform_window_;
 
@@ skipping 37 matching lines @@
   // Pointer to a view that covers the original header and has rounded top
   // corners. This view can have its color and opacity animated.
   RoundedContainerView* background_view_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSelectorItem);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_