Add CORS support for <link> elements.

Source/core/loader/ImageLoader.cpp

Index: Source/core/loader/ImageLoader.cpp
diff --git a/Source/core/loader/ImageLoader.cpp b/Source/core/loader/ImageLoader.cpp
index 5e26d16d5239550beba27d1f41686afef7884de6..1d99b4060668fb5a7ed04b68aa43ddacac8ca997 100644
--- a/Source/core/loader/ImageLoader.cpp
+++ b/Source/core/loader/ImageLoader.cpp
@@ -158,10 +158,8 @@ void ImageLoader::updateFromElement()
         FetchRequest request(ResourceRequest(document.completeURL(sourceURI(attr))), element()->localName());
 
         AtomicString crossOriginMode = m_element->fastGetAttribute(HTMLNames::crossoriginAttr);
-        if (!crossOriginMode.isNull()) {
-            StoredCredentials allowCredentials = equalIgnoringCase(crossOriginMode, "use-credentials") ? AllowStoredCredentials : DoNotAllowStoredCredentials;
-            request.setCrossOriginAccessControl(document.securityOrigin(), allowCredentials);
-        }
+        if (!crossOriginMode.isNull())
+            request.setCrossOriginAccessControl(document.securityOrigin(), crossOriginMode);
 
         if (m_loadManually) {
             bool autoLoadOtherImages = document.fetcher()->autoLoadImages();