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

ash/common/wm/overview/window_selector_item.h

Index: ash/common/wm/overview/window_selector_item.h
diff --git a/ash/common/wm/overview/window_selector_item.h b/ash/common/wm/overview/window_selector_item.h
index 6511fb96b63f12ee003184fe1662d6ff1e445730..ccd3959fa12160812e36e1b09c0df8e2589ca648 100644
--- a/ash/common/wm/overview/window_selector_item.h
+++ b/ash/common/wm/overview/window_selector_item.h
@@ -66,6 +66,9 @@ class ASH_EXPORT WindowSelectorItem : public views::ButtonListener,
   // Restores and animates the managed window to its non overview mode state.
   void RestoreWindow();
 
+  // Ensures that a possibly minimized window becomes visible after restore.
+  void EnsureVisible();
+
   // Restores stacking of window captions above the windows, then fades out.
   void Shutdown();