Animation: Cancel same-property animations on compositor

Source/core/animation/Animation.h

Index: Source/core/animation/Animation.h
diff --git a/Source/core/animation/Animation.h b/Source/core/animation/Animation.h
index 9adaffa9565af37bd4962687dc6c753185b9538e..d84057be2da6ebbff69ab773f98e0024b7e903bc 100644
--- a/Source/core/animation/Animation.h
+++ b/Source/core/animation/Animation.h
@@ -80,8 +80,11 @@ public:
     bool hasActiveAnimationsOnCompositor() const;
     bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
     void cancelAnimationOnCompositor();
+    void cancelIncompatibleAnimationsOnCompositor();
     void pauseAnimationForTestingOnCompositor(double pauseTime);
 
+    void setCompositorAnimationIdsForTesting(const Vector<int>& compositorAnimationIds) { m_compositorAnimationIds = compositorAnimationIds; }
+
     virtual void trace(Visitor*) override;
 
     void downgradeToNormalAnimation() { m_priority = DefaultPriority; }