def construct_asset_path(asset_path, css_path, variant)
      public_path = absolute_path(asset_path, css_path)
      return "__EMBED__#{public_path}" if embeddable?(public_path, variant)
      source = asset_path.absolute? || ! Jammit.rewrite_relative_paths ? asset_path.to_s : relative_path(public_path)
      rewrite_asset_path(source, public_path)
    end
def construct_asset_path(asset_path, css_path, variant)
      public_path = absolute_path(asset_path, css_path)
      return "__EMBED__#{public_path}" if embeddable?(public_path, variant)
      source = asset_path.absolute? || ! Jammit.rewrite_relative_paths ? asset_path.to_s : relative_path(public_path)
      rewrite_asset_path(source, public_path)
    end
Return a rewritten asset URL for a new stylesheet -- the asset should
 be tagged for embedding if embeddable, and referenced at the correct level
 if relative.