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

components/constrained_window/show_modal_dialog_cocoa.cc

Index: components/constrained_window/show_modal_dialog_cocoa.cc
diff --git a/components/constrained_window/show_modal_dialog_cocoa.cc b/components/constrained_window/show_modal_dialog_cocoa.cc
index bcb8a5ca4db36daaea169f542cd23c9bc19c8715..dc7dcdc0dbd8f171f2782c013d0720c54ea39e73 100644
--- a/components/constrained_window/show_modal_dialog_cocoa.cc
+++ b/components/constrained_window/show_modal_dialog_cocoa.cc
@@ -8,6 +8,7 @@
 #include "components/web_modal/single_web_contents_dialog_manager.h"
 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "content/public/browser/web_contents.h"
+#include "ui/base/accelerators/accelerator.h"
 #include "ui/gfx/native_widget_types.h"
 
 // TODO(patricialor): This is a layering violation and should be deleted.
@@ -31,4 +32,12 @@ void ShowModalDialog(gfx::NativeWindow dialog,
   manager->ShowDialogWithManager(dialog, std::move(dialog_manager));
 }
 
+void ShowTopLevelModalDialog(gfx::NativeWindow dialog,
+                             content::WebContents* initiator_web_contents,
+                             ui::AcceleratorTarget* target) {
+  // Mac uses sheets, so just call the normal show modal dialog, and the dialog
+  // will not be clipped.
+  ShowModalDialog(dialog, initiator_web_contents);
+}
+
 }  // namespace constrained_window