script: Add CSSImportRule WebIDL interface.

1 files changed, 4 insertions, 0 deletions

diff --git a/components/script/dom/cssrule.rs b/components/script/dom/cssrule.rs
index 603354c8621..27b439f9dc4 100644
--- a/components/script/dom/cssrule.rs
+++ b/components/script/dom/cssrule.rs
@@ -9,6 +9,7 @@ use dom::bindings::js::{JS, Root};
 use dom::bindings::reflector::{Reflector, reflect_dom_object};
 use dom::bindings::str::DOMString;
 use dom::cssfontfacerule::CSSFontFaceRule;
+use dom::cssimportrule::CSSImportRule;
 use dom::csskeyframerule::CSSKeyframeRule;
 use dom::csskeyframesrule::CSSKeyframesRule;
 use dom::cssmediarule::CSSMediaRule;
@@ -64,6 +65,8 @@ impl CSSRule {
             rule as &SpecificCSSRule
         } else if let Some(rule) = self.downcast::<CSSKeyframeRule>() {
             rule as &SpecificCSSRule
+        } else if let Some(rule) = self.downcast::<CSSImportRule>() {
+            rule as &SpecificCSSRule
         } else {
             unreachable!()
         }
@@ -75,6 +78,7 @@ impl CSSRule {
                         rule: StyleCssRule) -> Root<CSSRule> {
         // be sure to update the match in as_specific when this is updated
         match rule {
+            StyleCssRule::Import(s) => Root::upcast(CSSImportRule::new(window, parent_stylesheet, s)),
             StyleCssRule::Style(s) => Root::upcast(CSSStyleRule::new(window, parent_stylesheet, s)),
             StyleCssRule::FontFace(s) => Root::upcast(CSSFontFaceRule::new(window, parent_stylesheet, s)),
             StyleCssRule::Keyframes(s) => Root::upcast(CSSKeyframesRule::new(window, parent_stylesheet, s)),