Fix problems with cross-origin redirects.

Source/core/platform/network/ResourceHandleTypes.h

Index: Source/core/platform/network/ResourceHandleTypes.h
diff --git a/Source/core/platform/network/ResourceHandleTypes.h b/Source/core/platform/network/ResourceHandleTypes.h
index 870e7957d48fc53b3ab588022b4dcee00cff7873..4dde871d7caa608f5fe6d22a4841cea0a918e6b2 100644
--- a/Source/core/platform/network/ResourceHandleTypes.h
+++ b/Source/core/platform/network/ResourceHandleTypes.h
@@ -33,6 +33,15 @@ enum StoredCredentials {
     DoNotAllowStoredCredentials
 };
 
+// APIs like XMLHttpRequest and EventSource let the user decide
+// whether to send credentials, but they're always sent for
+// same-origin requests. Additional information is needed to handle
+// cross-origin redirects correctly.
+enum CredentialRequest {
+    ClientRequestedCredentials,
+    ClientDidNotRequestCredentials
+};
+
 } // namespace WebCore
 
 #endif // ResourceHandleTypes_h