Revert of HTML Imports: Send credentials for same origin requests

Source/core/html/HTMLLinkElement.cpp

Index: Source/core/html/HTMLLinkElement.cpp
diff --git a/Source/core/html/HTMLLinkElement.cpp b/Source/core/html/HTMLLinkElement.cpp
index 09090654a5a551a637101969c43b849f5858fe9d..09d7978407ba205c56c5fc7c533bda8ad0a8d7ac 100644
--- a/Source/core/html/HTMLLinkElement.cpp
+++ b/Source/core/html/HTMLLinkElement.cpp
@@ -692,8 +692,10 @@
         // Load stylesheets that are not needed for the rendering immediately with low priority.
         FetchRequest request = builder.build(blocking);
         AtomicString crossOriginMode = m_owner->fastGetAttribute(HTMLNames::crossoriginAttr);
-        if (!crossOriginMode.isNull())
-            request.setCrossOriginAccessControl(document().securityOrigin(), crossOriginMode);
+        if (!crossOriginMode.isNull()) {
+            StoredCredentials allowCredentials = equalIgnoringCase(crossOriginMode, "use-credentials") ? AllowStoredCredentials : DoNotAllowStoredCredentials;
+            request.setCrossOriginAccessControl(document().securityOrigin(), allowCredentials);
+        }
         setResource(document().fetcher()->fetchCSSStyleSheet(request));
 
         if (!resource()) {