Split CSSPrimitiveValue into CSSPrimitiveValue and CSSIdentifierValue

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

Index: third_party/WebKit/Source/core/animation/CSSClipInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/CSSClipInterpolationType.cpp b/third_party/WebKit/Source/core/animation/CSSClipInterpolationType.cpp
index a24cd4249940f5dc8297ef9538fbd4e665a2e4f6..c5593dec03b30d41af1bb00911c9e4da5bbaa32d 100644
--- a/third_party/WebKit/Source/core/animation/CSSClipInterpolationType.cpp
+++ b/third_party/WebKit/Source/core/animation/CSSClipInterpolationType.cpp
@@ -5,6 +5,7 @@
 #include "core/animation/CSSClipInterpolationType.h"
 
 #include "core/animation/LengthInterpolationFunctions.h"
+#include "core/css/CSSIdentifierValue.h"
 #include "core/css/CSSQuadValue.h"
 #include "core/css/resolver/StyleResolverState.h"
 #include "wtf/PtrUtil.h"
@@ -191,12 +192,12 @@ InterpolationValue CSSClipInterpolationType::maybeConvertInherit(const StyleReso
     return createClipValue(state.parentStyle()->clip(), state.parentStyle()->effectiveZoom());
 }
 
-static bool isCSSAuto(const CSSPrimitiveValue& value)
+static bool isCSSAuto(const CSSValue& value)
 {
-    return value.getValueID() == CSSValueAuto;
+    return value.isIdentifierValue() && toCSSIdentifierValue(value).getValueID() == CSSValueAuto;
 }
 
-static std::unique_ptr<InterpolableValue> convertClipComponent(const CSSPrimitiveValue& length)
+static std::unique_ptr<InterpolableValue> convertClipComponent(const CSSValue& length)
 {
     if (isCSSAuto(length))
         return InterpolableList::create(0);