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

ui/views/widget/widget_delegate.cc

Index: ui/views/widget/widget_delegate.cc
diff --git a/ui/views/widget/widget_delegate.cc b/ui/views/widget/widget_delegate.cc
index c5f9d97490c457d01995bd827481638c33a2b275..c105ec728c4a3d267b2fc726bf6ecee0a7dfc443 100644
--- a/ui/views/widget/widget_delegate.cc
+++ b/ui/views/widget/widget_delegate.cc
@@ -58,6 +58,10 @@ bool WidgetDelegate::CanActivate() const {
   return can_activate_;
 }
 
+bool WidgetDelegate::IsTopLevel() const {
+  return is_top_level_;
+}
+
 ui::ModalType WidgetDelegate::GetModalType() const {
   return ui::MODAL_TYPE_NONE;
 }