--- a/layout/style/ServoArcTypeList.h
+++ b/layout/style/ServoArcTypeList.h
@@ -8,8 +8,10 @@
 
 SERVO_ARC_TYPE(CssRules, ServoCssRules)
 SERVO_ARC_TYPE(StyleSheet, RawServoStyleSheet)
 SERVO_ARC_TYPE(ComputedValues, ServoComputedValues)
 SERVO_ARC_TYPE(DeclarationBlock, RawServoDeclarationBlock)
 SERVO_ARC_TYPE(StyleRule, RawServoStyleRule)
 SERVO_ARC_TYPE(ImportRule, RawServoImportRule)
 SERVO_ARC_TYPE(AnimationValue, RawServoAnimationValue)
+SERVO_ARC_TYPE(MediaList, RawServoMediaList)
+SERVO_ARC_TYPE(MediaRule, RawServoMediaRule)

--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -73,16 +73,18 @@ SERVO_BINDING_FUNC(Servo_StyleSet_FillKe
                    RawGeckoKeyframeListBorrowedMut keyframe_list)
 
 // CSSRuleList
 SERVO_BINDING_FUNC(Servo_CssRules_ListTypes, void,
                    ServoCssRulesBorrowed rules,
                    nsTArrayBorrowed_uintptr_t result)
 SERVO_BINDING_FUNC(Servo_CssRules_GetStyleRuleAt, RawServoStyleRuleStrong,
                    ServoCssRulesBorrowed rules, uint32_t index)
+SERVO_BINDING_FUNC(Servo_CssRules_GetMediaRuleAt, RawServoMediaRuleStrong,
+                   ServoCssRulesBorrowed rules, uint32_t index)
 SERVO_BINDING_FUNC(Servo_CssRules_InsertRule, nsresult,
                    ServoCssRulesBorrowed rules,
                    RawServoStyleSheetBorrowed sheet, const nsACString* rule,
                    uint32_t index, bool nested, uint16_t* rule_type)
 SERVO_BINDING_FUNC(Servo_CssRules_DeleteRule, nsresult,
                    ServoCssRulesBorrowed rules, uint32_t index)
 
 // CSS Rules
@@ -92,16 +94,24 @@ SERVO_BINDING_FUNC(Servo_StyleRule_GetSt
                    RawServoStyleRuleBorrowed rule)
 SERVO_BINDING_FUNC(Servo_StyleRule_SetStyle, void,
                    RawServoStyleRuleBorrowed rule,
                    RawServoDeclarationBlockBorrowed declarations)
 SERVO_BINDING_FUNC(Servo_StyleRule_GetCssText, void,
                    RawServoStyleRuleBorrowed rule, nsAString* result)
 SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorText, void,
                    RawServoStyleRuleBorrowed rule, nsAString* result)
+SERVO_BINDING_FUNC(Servo_MediaRule_Debug, void,
+                   RawServoMediaRuleBorrowed rule, nsACString* result)
+SERVO_BINDING_FUNC(Servo_MediaRule_GetMedia, RawServoMediaListStrong,
+                   RawServoMediaRuleBorrowed rule)
+SERVO_BINDING_FUNC(Servo_MediaRule_GetRules, ServoCssRulesStrong,
+                   RawServoMediaRuleBorrowed rule)
+SERVO_BINDING_FUNC(Servo_MediaRule_GetCssText, void,
+                   RawServoMediaRuleBorrowed rule, nsAString* result)
 
 // Animations API
 SERVO_BINDING_FUNC(Servo_ParseProperty,
                    RawServoDeclarationBlockStrong,
                    const nsACString* property, const nsACString* value,
                    const nsACString* base,
                    const GeckoParserExtraData* data)
 SERVO_BINDING_FUNC(Servo_GetComputedKeyframeValues, void,