CSSValue Immediates: Replace CSSPrimitiveValue usage with const references

Source/core/animation/DeferredLegacyStyleInterpolation.cpp

Index: Source/core/animation/DeferredLegacyStyleInterpolation.cpp
diff --git a/Source/core/animation/DeferredLegacyStyleInterpolation.cpp b/Source/core/animation/DeferredLegacyStyleInterpolation.cpp
index f570881f20558bc058806bc540547a4871681083..c27cfb755a7f14533fbf9cbc4182a470ed1071ba 100644
--- a/Source/core/animation/DeferredLegacyStyleInterpolation.cpp
+++ b/Source/core/animation/DeferredLegacyStyleInterpolation.cpp
@@ -43,7 +43,7 @@ void DeferredLegacyStyleInterpolation::apply(StyleResolverState& state) const
     m_innerInterpolation->apply(state);
 }
 
-bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValue value)
+bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValue& value)
 {
     // FIXME: should not require resolving styles for inherit/initial/unset.
     if (value.isCSSWideKeyword())
@@ -62,7 +62,7 @@ bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const C
     return true;
 }
 
-bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSPrimitiveValue primitiveValue)
+bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSPrimitiveValue& primitiveValue)
 {
     // FIXME: consider other types.
     if (primitiveValue.isNumber() || primitiveValue.isPercentage() || primitiveValue.isAngle() || primitiveValue.isRGBColor() || primitiveValue.isURI())
@@ -85,8 +85,8 @@ bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const C
     }
 
     if (Pair* pair = primitiveValue.getPairValue()) {
-        return interpolationRequiresStyleResolve(*pair->first())
-            || interpolationRequiresStyleResolve(*pair->second());
+        return interpolationRequiresStyleResolve(pair->first())
+            || interpolationRequiresStyleResolve(pair->second());
     }
 
     if (Rect* rect = primitiveValue.getRectValue()) {