fix GridLayout::CreatePanel for new style dialogs

ui/views/layout/layout_constants.h

Index: ui/views/layout/layout_constants.h
diff --git a/ui/views/layout/layout_constants.h b/ui/views/layout/layout_constants.h
index 267c855830ecb55d584c6c47aadcee3d5b279318..3990acc9b0fdb89438ecdb63918b15b35006fe7f 100644
--- a/ui/views/layout/layout_constants.h
+++ b/ui/views/layout/layout_constants.h
@@ -62,6 +62,14 @@ const int kButtonVEdgeMargin = 9;
 // left or right of a button.
 const int kButtonHEdgeMargin = 13;
 
+// Vertical spacing between the edge of the window and the
+// top or bottom of a button (when using new style dialogs).
+const int kButtonVEdgeMarginNew = 20;
+
+// Vertical spacing between the edge of the window and the
+// left or right of a button (when using new style dialogs).
+const int kButtonHEdgeMarginNew = 20;
+
 // Horizontal spacing between buttons that are logically related.
 const int kRelatedButtonHSpacing = 6;