Apply custom property animations

third_party/WebKit/Source/core/animation/EffectStack.cpp

Index: third_party/WebKit/Source/core/animation/EffectStack.cpp
diff --git a/third_party/WebKit/Source/core/animation/EffectStack.cpp b/third_party/WebKit/Source/core/animation/EffectStack.cpp
index 0bbfe02244d7b1bc386483574e39b8c1ab073bfd..90465dcba24aeb13dfc1ea5c4a4fe75525f6bed8 100644
--- a/third_party/WebKit/Source/core/animation/EffectStack.cpp
+++ b/third_party/WebKit/Source/core/animation/EffectStack.cpp
@@ -100,6 +100,16 @@ bool EffectStack::hasActiveAnimationsOnCompositor(
   return false;
 }
 
+bool EffectStack::affectsProperties(PropertyHandleFilter filter) const {
+  for (const auto& sampledEffect : m_sampledEffects) {
+    for (const auto& interpolation : sampledEffect->interpolations()) {
+      if (filter(interpolation->getProperty()))
+        return true;
+    }
+  }
+  return false;
+}
+
 ActiveInterpolationsMap EffectStack::activeInterpolations(
     EffectStack* effectStack,
     const HeapVector<Member<const InertEffect>>* newAnimations,