Move delivery of upload 'progress' events to XMLHttpRequestUpload.

Source/core/xml/XMLHttpRequest.cpp

Index: Source/core/xml/XMLHttpRequest.cpp
diff --git a/Source/core/xml/XMLHttpRequest.cpp b/Source/core/xml/XMLHttpRequest.cpp
index 2aa1a4c2553ad34a26eb31a3f5404708b4d3c8e7..37f2aed951a39599506101b84c90fa4cfe72267f 100644
--- a/Source/core/xml/XMLHttpRequest.cpp
+++ b/Source/core/xml/XMLHttpRequest.cpp
@@ -1223,7 +1223,7 @@ void XMLHttpRequest::didSendData(unsigned long long bytesSent, unsigned long lon
         return;
 
     if (m_uploadEventsAllowed)
-        m_upload->dispatchEvent(XMLHttpRequestProgressEvent::create(EventTypeNames::progress, true, bytesSent, totalBytesToBeSent));
+        m_upload->dispatchProgressEvent(bytesSent, totalBytesToBeSent);
 
     if (bytesSent == totalBytesToBeSent && !m_uploadComplete) {
         m_uploadComplete = true;