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

components/constrained_window/constrained_window_views.h

Index: components/constrained_window/constrained_window_views.h
diff --git a/components/constrained_window/constrained_window_views.h b/components/constrained_window/constrained_window_views.h
index fd44fe77d3a6ddf46780980b4c230fc35e681af3..1379f08326b7ee15cac30b03480e593c38988fef 100644
--- a/components/constrained_window/constrained_window_views.h
+++ b/components/constrained_window/constrained_window_views.h
@@ -47,6 +47,16 @@ views::Widget* ShowWebModalDialogViews(
     views::WidgetDelegate* dialog,
     content::WebContents* initiator_web_contents);
 
+// Calls CreateWebModalDialogViews, shows the dialog as a non-clipped dialog
+// (bounds not constrained by the parent window) and returns its widget. For
+// platforms that do not support unclipped dialogs and for Mac, which has non
+// clipped dialogs by default, this has the same behavior as
+// ShowWebModalDialogViews. Currently, unclipped dialogs are only supported on
+// Chrome OS and Mac (Mac dialogs are always non clipped).
+views::Widget* ShowNonClippedWebModalDialogViews(
+    views::WidgetDelegate* dialog,
+    content::WebContents* initiator_web_contents);
+
 // Create a widget for |dialog| that is modal to |web_contents|.
 // The modal type of |dialog->GetModalType()| must be ui::MODAL_TYPE_CHILD.
 views::Widget* CreateWebModalDialogViews(views::WidgetDelegate* dialog,
@@ -59,6 +69,6 @@ views::Widget* CreateWebModalDialogViews(views::WidgetDelegate* dialog,
 views::Widget* CreateBrowserModalDialogViews(views::DialogDelegate* dialog,
                                              gfx::NativeWindow parent);
 
-}  // namespace constrained window
+}  // namespace constrained_window
 
 #endif  // COMPONENTS_CONSTRAINED_WINDOW_CONSTRAINED_WINDOW_VIEWS_H_