--- a/layout/style/nsAnimationManager.cpp
+++ b/layout/style/nsAnimationManager.cpp
@@ -194,17 +194,17 @@ CSSAnimation::QueueEvents()
   // Get the nsAnimationManager so we can queue events on it
   nsPresContext* presContext = mOwningElement.GetRenderedPresContext();
   if (!presContext) {
     return;
   }
   nsAnimationManager* manager = presContext->AnimationManager();
   ComputedTiming computedTiming = mEffect->GetComputedTiming();
 
-  ComputedTiming::AnimationPhase currentPhase = computedTiming.mPhase;
+  AnimationPhase currentPhase = computedTiming.mPhase;
   uint64_t currentIteration  = computedTiming.mCurrentIteration;
   if (currentPhase == mPreviousPhase &&
       currentIteration == mPreviousIteration) {
     return;
   }
 
   const StickyTimeDuration zeroDuration;
   StickyTimeDuration intervalStartTime =

--- a/layout/style/nsTransitionManager.cpp
+++ b/layout/style/nsTransitionManager.cpp
@@ -41,18 +41,16 @@ using mozilla::TimeDuration;
 using mozilla::dom::Animation;
 using mozilla::dom::AnimationPlayState;
 using mozilla::dom::CSSTransition;
 using mozilla::dom::KeyframeEffectReadOnly;
 
 using namespace mozilla;
 using namespace mozilla::css;
 
-typedef mozilla::ComputedTiming::AnimationPhase AnimationPhase;
-
 namespace {
 struct TransitionEventParams {
   EventMessage mMessage;
   StickyTimeDuration mElapsedTime;
   TimeStamp mTimeStamp;
 };
 } // anonymous namespace