Compositor animations for Independent CSS Transform Properties

Source/core/animation/EffectModel.h

Index: Source/core/animation/EffectModel.h
diff --git a/Source/core/animation/EffectModel.h b/Source/core/animation/EffectModel.h
index 2e131940ceaea078f08782e6745e055e3ffa0679..e1b6f576905ee25fbe4f7fe2808d8cdc1d47a8c4 100644
--- a/Source/core/animation/EffectModel.h
+++ b/Source/core/animation/EffectModel.h
@@ -57,6 +57,7 @@ public:
     virtual void sample(int iteration, double fraction, double iterationDuration, OwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation>>>&) const = 0;
 
     virtual bool affects(PropertyHandle) const { return false; };
+    virtual bool isTransformRelatedEffect() const { return false; };
     virtual bool isKeyframeEffectModel() const { return false; }
 
     DEFINE_INLINE_VIRTUAL_TRACE() { }