diff -r 000000000000 -r 6474c204b198 browser/devtools/styleeditor/test/sourcemap-css/contained.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/styleeditor/test/sourcemap-css/contained.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,4 @@
+#header {
+  color: #f06; }
+
+/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiIiwic291cmNlcyI6WyJzYXNzL2NvbnRhaW5lZC5zY3NzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUVBO0VBQ0UsT0FISyIsInNvdXJjZXNDb250ZW50IjpbIiRwaW5rOiAjZjA2O1xuXG4jaGVhZGVyIHtcbiAgY29sb3I6ICRwaW5rO1xufSJdfQ==*/
\ No newline at end of file