For some vector icons, get the size from the vector definition.

ui/gfx/paint_vector_icon.cc

Index: ui/gfx/paint_vector_icon.cc
diff --git a/ui/gfx/paint_vector_icon.cc b/ui/gfx/paint_vector_icon.cc
index 087d0ee31fe093820c8f115d438fd825708316eb..3bac6acd472f9b92de642c30a94e11d44d6dc325 100644
--- a/ui/gfx/paint_vector_icon.cc
+++ b/ui/gfx/paint_vector_icon.cc
@@ -396,6 +396,13 @@ void PaintVectorIcon(Canvas* canvas,
   PaintPath(canvas, path, dip_size, color);
 }
 
+ImageSkia CreateVectorIcon(VectorIconId id, SkColor color) {
+  const PathElement* one_x_path = GetPathForVectorIconAt1xScale(id);
+  size_t size = one_x_path[0].type == CANVAS_DIMENSIONS ? one_x_path[1].arg
+                                                        : kReferenceSizeDip;
+  return CreateVectorIcon(id, size, color);
+}
+
 ImageSkia CreateVectorIcon(VectorIconId id, size_t dip_size, SkColor color) {
   return CreateVectorIconWithBadge(id, dip_size, color,
                                    VectorIconId::VECTOR_ICON_NONE);