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

ui/views/widget/widget.cc

Index: ui/views/widget/widget.cc
diff --git a/ui/views/widget/widget.cc b/ui/views/widget/widget.cc
index 62b4b56680940483f338c2a56a1222da3279f264..79b44edf2a447bbd8e9649ed0863d5c03396b140 100644
--- a/ui/views/widget/widget.cc
+++ b/ui/views/widget/widget.cc
@@ -1007,6 +1007,10 @@ bool Widget::IsModal() const {
   return widget_delegate_->GetModalType() != ui::MODAL_TYPE_NONE;
 }
 
+bool Widget::IsModalTypeChild() const {
+  return widget_delegate_->GetModalType() == ui::MODAL_TYPE_CHILD;
+}
+
 bool Widget::IsDialogBox() const {
   return !!widget_delegate_->AsDialogDelegate();
 }