Implement request's redirect mode and RequestRedirect for Fetch

Source/platform/exported/WebURLRequest.cpp

Index: Source/platform/exported/WebURLRequest.cpp
diff --git a/Source/platform/exported/WebURLRequest.cpp b/Source/platform/exported/WebURLRequest.cpp
index 3bd268c3a9bc4c82ee41877859579a551f57fafc..759994d0491d213a9a71dcff87957d08561b326c 100644
--- a/Source/platform/exported/WebURLRequest.cpp
+++ b/Source/platform/exported/WebURLRequest.cpp
@@ -360,6 +360,16 @@ void WebURLRequest::setFetchCredentialsMode(WebURLRequest::FetchCredentialsMode
     return m_private->m_resourceRequest->setFetchCredentialsMode(mode);
 }
 
+WebURLRequest::FetchRedirectMode WebURLRequest::fetchRedirectMode() const
+{
+    return m_private->m_resourceRequest->fetchRedirectMode();
+}
+
+void WebURLRequest::setFetchRedirectMode(WebURLRequest::FetchRedirectMode mode)
+{
+    return m_private->m_resourceRequest->setFetchRedirectMode(mode);
+}
+
 WebURLRequest::ExtraData* WebURLRequest::extraData() const
 {
     RefPtr<ResourceRequest::ExtraData> data = m_private->m_resourceRequest->extraData();