Make CSSValuePair store const CSSValues

third_party/WebKit/Source/core/css/BasicShapeFunctions.cpp

Index: third_party/WebKit/Source/core/css/BasicShapeFunctions.cpp
diff --git a/third_party/WebKit/Source/core/css/BasicShapeFunctions.cpp b/third_party/WebKit/Source/core/css/BasicShapeFunctions.cpp
index 9e0e8de49ba2c163e2b15ead2664d0e846741a9f..cb148ab6d336cbe57bc69fc04dfc67c2f72c7e6b 100644
--- a/third_party/WebKit/Source/core/css/BasicShapeFunctions.cpp
+++ b/third_party/WebKit/Source/core/css/BasicShapeFunctions.cpp
@@ -117,14 +117,14 @@ CSSValue* valueForBasicShape(const ComputedStyle& style, const BasicShape* basic
     }
 }
 
-static Length convertToLength(const StyleResolverState& state, CSSPrimitiveValue* value)
+static Length convertToLength(const StyleResolverState& state, const CSSPrimitiveValue* value)
 {
     if (!value)
         return Length(0, Fixed);
     return value->convertToLength(state.cssToLengthConversionData());
 }
 
-static LengthSize convertToLengthSize(const StyleResolverState& state, CSSValuePair* value)
+static LengthSize convertToLengthSize(const StyleResolverState& state, const CSSValuePair* value)
 {
     if (!value)
         return LengthSize(Length(0, Fixed), Length(0, Fixed));
@@ -171,7 +171,7 @@ static BasicShapeCenterCoordinate convertToCenterCoordinate(const StyleResolverS
     return BasicShapeCenterCoordinate(direction, offset);
 }
 
-static BasicShapeRadius cssValueToBasicShapeRadius(const StyleResolverState& state, CSSPrimitiveValue* radius)
+static BasicShapeRadius cssValueToBasicShapeRadius(const StyleResolverState& state, const CSSPrimitiveValue* radius)
 {
     if (!radius)
         return BasicShapeRadius(BasicShapeRadius::ClosestSide);