Provide inheriting of method sanitize_columns for views_plugin_style

I set this to a feature request as I think it is :)

For my modules views implementation I am cloning sanitize_columns from

class views_plugin_style_table extends views_plugin_style {

into

class views_plugin_style_graphapi extends views_plugin_style {
...
  function sanitize_columns($columns, $fields = NULL) {
...

which feels awkward. I expected another inheritance class but there isn't right?

Removing a field kills my view without a field sanitation.

Is there a better way?

For reference: my code is http://drupalcode.org/project/graphapi.git/tree/refs/heads/master:/views