--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -235,16 +235,22 @@ SERVO_BINDING_FUNC(Servo_GetProperties_O
                    nsCSSPropertyIDSetBorrowedMut)
 SERVO_BINDING_FUNC(Servo_MatrixTransform_Operate, void,
                    nsStyleTransformMatrix::MatrixTransformOperator
                      matrix_operator,
                    const RawGeckoGfxMatrix4x4* from,
                    const RawGeckoGfxMatrix4x4* to,
                    double progress,
                    RawGeckoGfxMatrix4x4* result)
+SERVO_BINDING_FUNC(Servo_GetAnimationValues, void,
+                   RawServoDeclarationBlockBorrowed declarations,
+                   RawGeckoElementBorrowed element,
+                   ServoComputedValuesBorrowed style,
+                   RawServoStyleSetBorrowed style_set,
+                   RawGeckoServoAnimationValueListBorrowedMut animation_values)
 
 // AnimationValues handling
 SERVO_BINDING_FUNC(Servo_AnimationValues_Interpolate,
                    RawServoAnimationValueStrong,
                    RawServoAnimationValueBorrowed from,
                    RawServoAnimationValueBorrowed to,
                    double progress)
 SERVO_BINDING_FUNC(Servo_AnimationValues_IsInterpolable, bool,

--- a/layout/style/ServoBindingTypes.h
+++ b/layout/style/ServoBindingTypes.h
@@ -53,16 +53,17 @@ using mozilla::dom::StyleChildrenIterato
 using mozilla::ServoElementSnapshot;
 
 typedef nsINode RawGeckoNode;
 typedef mozilla::dom::Element RawGeckoElement;
 typedef nsIDocument RawGeckoDocument;
 typedef nsPresContext RawGeckoPresContext;
 typedef nsXBLBinding RawGeckoXBLBinding;
 typedef mozilla::URLExtraData RawGeckoURLExtraData;
+typedef nsTArray<RefPtr<RawServoAnimationValue>> RawGeckoServoAnimationValueList;
 typedef nsTArray<mozilla::Keyframe> RawGeckoKeyframeList;
 typedef nsTArray<mozilla::ComputedKeyframeValues> RawGeckoComputedKeyframeValuesList;
 typedef nsStyleAutoArray<mozilla::StyleAnimation> RawGeckoStyleAnimationList;
 typedef nsTArray<nsFontFaceRuleContainer> RawGeckoFontFaceRuleList;
 typedef mozilla::AnimationPropertySegment RawGeckoAnimationPropertySegment;
 typedef mozilla::ComputedTiming RawGeckoComputedTiming;
 typedef nsTArray<const RawServoStyleRule*> RawGeckoServoStyleRuleList;
 typedef nsTArray<nsCSSPropertyID> RawGeckoCSSPropertyIDList;
@@ -135,16 +136,17 @@ DECL_NULLABLE_BORROWED_REF_TYPE_FOR(RawG
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoXBLBinding)
 DECL_NULLABLE_BORROWED_REF_TYPE_FOR(RawGeckoXBLBinding)
 DECL_BORROWED_MUT_REF_TYPE_FOR(StyleChildrenIterator)
 DECL_BORROWED_MUT_REF_TYPE_FOR(ServoElementSnapshot)
 DECL_BORROWED_REF_TYPE_FOR(nsCSSValue)
 DECL_BORROWED_MUT_REF_TYPE_FOR(nsCSSValue)
 DECL_OWNED_REF_TYPE_FOR(RawGeckoPresContext)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoPresContext)
+DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoServoAnimationValueList)
 DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoKeyframeList)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoKeyframeList)
 DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoComputedKeyframeValuesList)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoStyleAnimationList)
 DECL_BORROWED_MUT_REF_TYPE_FOR(nsTimingFunction)
 DECL_BORROWED_REF_TYPE_FOR(nsTimingFunction)
 DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoFontFaceRuleList)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoAnimationPropertySegment)

--- a/layout/style/ServoBindings.toml
+++ b/layout/style/ServoBindings.toml
@@ -334,16 +334,17 @@ structs-types = [
     "RawGeckoCSSPropertyIDList",
     "RawGeckoDocument",
     "RawGeckoElement",
     "RawGeckoKeyframeList",
     "RawGeckoComputedKeyframeValuesList",
     "RawGeckoFontFaceRuleList",
     "RawGeckoNode",
     "RawServoAnimationValue",
+    "RawGeckoServoAnimationValueList",
     "RawServoDeclarationBlock",
     "RawServoStyleRule",
     "RawGeckoPresContext",
     "RawGeckoPresContextOwned",
     "RawGeckoStyleAnimationList",
     "RawGeckoServoStyleRuleList",
     "RawGeckoURLExtraData",
     "RawGeckoXBLBinding",
@@ -468,13 +469,14 @@ servo-borrow-types = [
     "nsTimingFunction",
     "RawGeckoAnimationPropertySegment",
     "RawGeckoComputedTiming",
     "RawGeckoCSSPropertyIDList",
     "RawGeckoKeyframeList",
     "RawGeckoComputedKeyframeValuesList",
     "RawGeckoFontFaceRuleList",
     "RawGeckoServoStyleRuleList",
+    "RawGeckoServoAnimationValueList",
 ]
 fixups = [
     # hack for gecko-owned string
     { pat = "<nsString", rep = "<nsStringRepr" },
 ]