Move Image ownership out of CSSValue

Source/core/css/CSSCursorImageValue.cpp

Index: Source/core/css/CSSCursorImageValue.cpp
diff --git a/Source/core/css/CSSCursorImageValue.cpp b/Source/core/css/CSSCursorImageValue.cpp
index 16e38f9d7c5ac93ce1c72c96f85b4ebf6ed26063..77a48c3483966cdb1a38279237533401856f8905 100644
--- a/Source/core/css/CSSCursorImageValue.cpp
+++ b/Source/core/css/CSSCursorImageValue.cpp
@@ -120,7 +120,7 @@ bool CSSCursorImageValue::updateIfSVGCursorIsUsed(Element* element)
     return false;
 }
 
-StyleImage* CSSCursorImageValue::cachedImage(Document* document, float deviceScaleFactor)
+StyleImage* CSSCursorImageValue::cachedImage(Document* document, CSSStyleImageMap& imageMap, float deviceScaleFactor)
 {
     if (m_imageValue->isImageSetValue())
         return toCSSImageSetValue(m_imageValue.get())->cachedImageSet(document, deviceScaleFactor);
@@ -137,14 +137,14 @@ StyleImage* CSSCursorImageValue::cachedImage(Document* document, float deviceSca
             if (SVGCursorElement* cursorElement = resourceReferencedByCursorElement(imageValue->url(), *document)) {
                 RefPtrWillBeRawPtr<CSSImageValue> svgImageValue = CSSImageValue::create(document->completeURL(cursorElement->href()->currentValue()->value()));
                 svgImageValue->setReferrer(imageValue->referrer());
-                StyleFetchedImage* cachedImage = svgImageValue->cachedImage(document);
+                StyleFetchedImage* cachedImage = svgImageValue->cachedImage(document, imageMap);
                 m_image = cachedImage;
                 return cachedImage;
             }
         }
 
         if (m_imageValue->isImageValue())
-            m_image = toCSSImageValue(m_imageValue.get())->cachedImage(document);
+            m_image = toCSSImageValue(m_imageValue.get())->cachedImage(document, imageMap);
     }
 
     if (m_image && m_image->isImageResource())
@@ -152,7 +152,7 @@ StyleImage* CSSCursorImageValue::cachedImage(Document* document, float deviceSca
     return 0;
 }
 
-StyleImage* CSSCursorImageValue::cachedOrPendingImage(float deviceScaleFactor)
+StyleImage* CSSCursorImageValue::cachedOrPendingImage(CSSStyleImageMap& imageMap, float deviceScaleFactor)
 {
     // Need to delegate completely so that changes in device scale factor can be handled appropriately.
     if (m_imageValue->isImageSetValue())