Created min size for print preview dialog and modified to allow the

ui/views/widget/native_widget_delegate.h

Index: ui/views/widget/native_widget_delegate.h
diff --git a/ui/views/widget/native_widget_delegate.h b/ui/views/widget/native_widget_delegate.h
index e6c3b84ea042a36eb5ad1deb1ed3c6782f4eb9bd..785ee42e246e0f42e5072d5fb0e261074408bd87 100644
--- a/ui/views/widget/native_widget_delegate.h
+++ b/ui/views/widget/native_widget_delegate.h
@@ -45,6 +45,8 @@ class VIEWS_EXPORT NativeWidgetDelegate {
   // Returns true if the window is modal.
   virtual bool IsModal() const = 0;
 
+  virtual bool IsModalTypeChild() const = 0;
+
   // Returns true if the window is a dialog box.
   virtual bool IsDialogBox() const = 0;