4 calls to drupal_load_stylesheet()

CascadingStylesheetsUnitTest::testLoadCssBasic in modules/simpletest/tests/common.test
Tests basic CSS loading with and without optimization via drupal_load_stylesheet().
color_scheme_form_submit in modules/color/color.module
Form submission handler for color_scheme_form().
drupal_build_css_cache in includes/common.inc
Aggregates and optimizes CSS files into a cache file in the files directory.
_drupal_load_stylesheet in includes/common.inc
Loads stylesheets recursively and returns contents with corrected paths.

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