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 dfe231dc0ed30f7a2ea8ac1e5a93f3b15458be55..6664e57339ad768cdc068be1f24f27acc576e200 100644
--- a/Source/platform/exported/WebURLRequest.cpp
+++ b/Source/platform/exported/WebURLRequest.cpp
@@ -349,6 +349,16 @@ 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();