Move Priority enum/field to KeyframeEffectReadOnly

third_party/WebKit/Source/core/animation/AnimationStack.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 49 matching lines @@
     m_sampledEffects.append(sampledEffect);
   }
   bool isEmpty() const { return m_sampledEffects.isEmpty(); }
   bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
 
   using PropertyHandleFilter = bool (*)(const PropertyHandle&);
   static ActiveInterpolationsMap activeInterpolations(
       AnimationStack*,
       const HeapVector<Member<const InertEffect>>* newAnimations,
       const HeapHashSet<Member<const Animation>>* suppressedAnimations,
-      KeyframeEffect::Priority,
+      KeyframeEffectReadOnly::Priority,
       PropertyHandleFilter = nullptr);
 
   bool getAnimatedBoundingBox(FloatBox&, CSSPropertyID) const;
   DECLARE_TRACE();
 
  private:
   void removeRedundantSampledEffects();
 
   // Effects sorted by priority. Lower priority at the start of the list.
   HeapVector<Member<SampledEffect>> m_sampledEffects;
 
   friend class AnimationAnimationStackTest;
 };
 
 }  // namespace blink
 
 #endif  // AnimationStack_h