Set proper referrer for css resource fetching

Source/core/html/HTMLTableElement.cpp

Index: Source/core/html/HTMLTableElement.cpp
diff --git a/Source/core/html/HTMLTableElement.cpp b/Source/core/html/HTMLTableElement.cpp
index 70503c29cc9709a7fa31feaec040e991f103fc12..43a5367a9b34be449ae6902c0da1fc6c44467118 100644
--- a/Source/core/html/HTMLTableElement.cpp
+++ b/Source/core/html/HTMLTableElement.cpp
@@ -304,8 +304,11 @@ void HTMLTableElement::collectStyleForPresentationAttribute(const QualifiedName&
         addHTMLColorToStyle(style, CSSPropertyBackgroundColor, value);
     else if (name == backgroundAttr) {
         String url = stripLeadingAndTrailingHTMLSpaces(value);
-        if (!url.isEmpty())
-            style->setProperty(CSSProperty(CSSPropertyBackgroundImage, CSSImageValue::create(url, document().completeURL(url))));
+        if (!url.isEmpty()) {
+            RefPtrWillBeRawPtr<CSSImageValue> imageValue = CSSImageValue::create(url, document().completeURL(url));
+            imageValue->setReferrer(document().outgoingReferrer());
+            style->setProperty(CSSProperty(CSSPropertyBackgroundImage, imageValue.release()));
+        }
     } else if (name == valignAttr) {
         if (!value.isEmpty())
             addPropertyToPresentationAttributeStyle(style, CSSPropertyVerticalAlign, value);