Implement animation tainted custom property values

third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp

Index: third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp b/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
index 65f290940c5f232da962a58f37bfcdf4f4eca1cf..131a5d7b0287236a8cc71a19c95545705b8dd3fa 100644
--- a/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp
@@ -40,6 +40,7 @@
 #include "core/CSSValueKeywords.h"
 #include "core/StyleBuilderFunctions.h"
 #include "core/StylePropertyShorthand.h"
+#include "core/animation/css/CSSAnimations.h"
 #include "core/css/CSSCounterValue.h"
 #include "core/css/CSSCursorImageValue.h"
 #include "core/css/CSSCustomPropertyDeclaration.h"
@@ -112,8 +113,10 @@ void StyleBuilder::applyProperty(CSSPropertyID id,
                                  const CSSValue& value) {
   if (id != CSSPropertyVariable && (value.isVariableReferenceValue() ||
                                     value.isPendingSubstitutionValue())) {
+    bool omitAnimationTainted = CSSAnimations::isAnimationAffectingProperty(id);
     const CSSValue* resolvedValue =
-        CSSVariableResolver::resolveVariableReferences(state, id, value);
+        CSSVariableResolver::resolveVariableReferences(state, id, value,
+                                                       omitAnimationTainted);
     applyProperty(id, state, *resolvedValue);
 
     if (!state.style()->hasVariableReferenceFromNonInheritedProperty() &&