[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 f2ff9df8daaa78ed89787173f532a76f33c6699f..a5a3915f334333671555ff9f74033c7486900adc 100644
--- a/ash/common/wm/overview/window_selector_item.h
+++ b/ash/common/wm/overview/window_selector_item.h
@@ -94,6 +94,9 @@ 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();