Add CanMinimize to classes that implement WidgetDelegate::CanMaximize.

ui/views/widget/widget_delegate.h

Index: ui/views/widget/widget_delegate.h
diff --git a/ui/views/widget/widget_delegate.h b/ui/views/widget/widget_delegate.h
index b9903096c14c6920a544afbf2270f78859bff4e2..422c286ea2ee9f31cdb1d6fcc0cfbb3d4b4b1bd8 100644
--- a/ui/views/widget/widget_delegate.h
+++ b/ui/views/widget/widget_delegate.h
@@ -52,12 +52,15 @@ class VIEWS_EXPORT WidgetDelegate {
   virtual BubbleDelegateView* AsBubbleDelegate();
   virtual DialogDelegate* AsDialogDelegate();
 
-  // Returns true if the window can ever be resized.
+  // Returns true if the window can be resized.
   virtual bool CanResize() const;
 
-  // Returns true if the window can ever be maximized.
+  // Returns true if the window can be maximized.
   virtual bool CanMaximize() const;
 
+  // Returns true if the window can be minimized.
+  virtual bool CanMinimize() const;
+
   // Returns true if the window can be activated.
   virtual bool CanActivate() const;