--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -68,17 +68,16 @@ SERVO_BINDING_FUNC(Servo_StyleSet_Insert
 SERVO_BINDING_FUNC(Servo_StyleSet_FlushStyleSheets, void, RawServoStyleSetBorrowed set,
                    RawGeckoElementBorrowedOrNull doc_elem)
 SERVO_BINDING_FUNC(Servo_StyleSet_NoteStyleSheetsChanged, void,
                    RawServoStyleSetBorrowed set, bool author_style_disabled)
 SERVO_BINDING_FUNC(Servo_StyleSet_GetKeyframesForName, bool,
                    RawServoStyleSetBorrowed set,
                    const nsACString* property,
                    nsTimingFunctionBorrowed timing_function,
-                   ServoComputedValuesBorrowed computed_values,
                    RawGeckoKeyframeListBorrowedMut keyframe_list)
 SERVO_BINDING_FUNC(Servo_StyleSet_GetFontFaceRules, void,
                    RawServoStyleSetBorrowed set,
                    RawGeckoFontFaceRuleListBorrowedMut list)
 SERVO_BINDING_FUNC(Servo_StyleSet_GetCounterStyleRule, nsCSSCounterStyleRule*,
                    RawServoStyleSetBorrowed set, nsIAtom* name)
 SERVO_BINDING_FUNC(Servo_StyleSet_ResolveForDeclarations,
                    ServoComputedValuesStrong,

--- a/layout/style/ServoStyleSet.cpp
+++ b/layout/style/ServoStyleSet.cpp
@@ -1025,26 +1025,24 @@ ServoStyleSet::AssertTreeIsClean()
     Servo_AssertTreeIsClean(root);
   }
 }
 #endif
 
 bool
 ServoStyleSet::GetKeyframesForName(const nsString& aName,
                                    const nsTimingFunction& aTimingFunction,
-                                   const ServoComputedValues* aComputedValues,
                                    nsTArray<Keyframe>& aKeyframes)
 {
   UpdateStylistIfNeeded();
 
   NS_ConvertUTF16toUTF8 name(aName);
   return Servo_StyleSet_GetKeyframesForName(mRawSet.get(),
                                             &name,
                                             &aTimingFunction,
-                                            aComputedValues,
                                             &aKeyframes);
 }
 
 nsTArray<ComputedKeyframeValues>
 ServoStyleSet::GetComputedKeyframeValuesFor(
   const nsTArray<Keyframe>& aKeyframes,
   Element* aElement,
   ServoComputedValuesBorrowed aComputedValues)

--- a/layout/style/ServoStyleSet.h
+++ b/layout/style/ServoStyleSet.h
@@ -383,17 +383,16 @@ public:
   /**
    * Resolve style for the given element, and return it as a
    * ServoComputedValues, not an nsStyleContext.
    */
   already_AddRefed<ServoComputedValues> ResolveServoStyle(dom::Element* aElement);
 
   bool GetKeyframesForName(const nsString& aName,
                            const nsTimingFunction& aTimingFunction,
-                           const ServoComputedValues* aComputedValues,
                            nsTArray<Keyframe>& aKeyframes);
 
   nsTArray<ComputedKeyframeValues>
   GetComputedKeyframeValuesFor(const nsTArray<Keyframe>& aKeyframes,
                                dom::Element* aElement,
                                ServoComputedValuesBorrowed aComputedValues);
 
   void

--- a/layout/style/nsAnimationManager.cpp
+++ b/layout/style/nsAnimationManager.cpp
@@ -414,17 +414,16 @@ public:
                       const StyleAnimation& aSrc,
                       nsTArray<Keyframe>& aKeyframes)
   {
     ServoStyleSet* styleSet = aPresContext->StyleSet()->AsServo();
     MOZ_ASSERT(styleSet);
     const nsTimingFunction& timingFunction = aSrc.GetTimingFunction();
     return styleSet->GetKeyframesForName(aSrc.GetName(),
                                          timingFunction,
-                                         mComputedValues,
                                          aKeyframes);
   }
   void SetKeyframes(KeyframeEffectReadOnly& aEffect,
                     nsTArray<Keyframe>&& aKeyframes)
   {
     aEffect.SetKeyframes(Move(aKeyframes), mComputedValues);
   }