Add CORS support for <link> elements.

Source/core/fetch/FetchRequest.cpp

Index: Source/core/fetch/FetchRequest.cpp
diff --git a/Source/core/fetch/FetchRequest.cpp b/Source/core/fetch/FetchRequest.cpp
index 391396b1dc58d39bfcc19e8645e5d1e05e2d72ee..4ec40ccf5ac06c21107dc29dbc83a7dc07e2ef1b 100644
--- a/Source/core/fetch/FetchRequest.cpp
+++ b/Source/core/fetch/FetchRequest.cpp
@@ -75,4 +75,11 @@ void FetchRequest::setCrossOriginAccessControl(SecurityOrigin* origin, StoredCre
     m_options.corsEnabled = IsCORSEnabled;
 }
 
+void FetchRequest::setCrossOriginAccessControl(SecurityOrigin* origin, const AtomicString& crossOriginMode)
+{
+    StoredCredentials allowCredentials = equalIgnoringCase(crossOriginMode, "use-credentials") ? AllowStoredCredentials : DoNotAllowStoredCredentials;
+    updateRequestForAccessControl(m_resourceRequest, origin, allowCredentials);
+    m_options.corsEnabled = IsCORSEnabled;
+}
+
 } // namespace WebCore