Teach WebURLRequest about Fetch's "frame type" concept.

Source/platform/network/ResourceRequest.cpp

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 36 matching lines @@
 
     request->setHTTPBody(data->m_httpBody);
     request->setAllowStoredCredentials(data->m_allowStoredCredentials);
     request->setReportUploadProgress(data->m_reportUploadProgress);
     request->setHasUserGesture(data->m_hasUserGesture);
     request->setDownloadToFile(data->m_downloadToFile);
     request->setRequestorID(data->m_requestorID);
     request->setRequestorProcessID(data->m_requestorProcessID);
     request->setAppCacheHostID(data->m_appCacheHostID);
     request->setRequestContext(data->m_requestContext);
+    request->setFrameType(data->m_frameType);
     request->m_referrerPolicy = data->m_referrerPolicy;
     return request.release();
 }
 
 PassOwnPtr<CrossThreadResourceRequestData> ResourceRequest::copyData() const
 {
     OwnPtr<CrossThreadResourceRequestData> data = adoptPtr(new CrossThreadResourceRequestData());
     data->m_url = url().copy();
     data->m_cachePolicy = cachePolicy();
     data->m_timeoutInterval = timeoutInterval();
     data->m_firstPartyForCookies = firstPartyForCookies().copy();
     data->m_httpMethod = httpMethod().string().isolatedCopy();
     data->m_httpHeaders = httpHeaderFields().copyData();
     data->m_priority = priority();
     data->m_intraPriorityValue = m_intraPriorityValue;
 
     if (m_httpBody)
         data->m_httpBody = m_httpBody->deepCopy();
     data->m_allowStoredCredentials = m_allowStoredCredentials;
     data->m_reportUploadProgress = m_reportUploadProgress;
     data->m_hasUserGesture = m_hasUserGesture;
     data->m_downloadToFile = m_downloadToFile;
     data->m_requestorID = m_requestorID;
     data->m_requestorProcessID = m_requestorProcessID;
     data->m_appCacheHostID = m_appCacheHostID;
     data->m_requestContext = m_requestContext;
+    data->m_frameType = m_frameType;
     data->m_referrerPolicy = m_referrerPolicy;
     return data.release();
 }
 
 bool ResourceRequest::isEmpty() const
 {
     return m_url.isEmpty();
 }
 
 bool ResourceRequest::isNull() const
@@ skipping 299 matching lines @@
     m_reportUploadProgress = false;
     m_reportRawHeaders = false;
     m_hasUserGesture = false;
     m_downloadToFile = false;
     m_priority = ResourceLoadPriorityLow;
     m_intraPriorityValue = 0;
     m_requestorID = 0;
     m_requestorProcessID = 0;
     m_appCacheHostID = 0;
     m_requestContext = blink::WebURLRequest::RequestContextUnspecified;
+    m_frameType = blink::WebURLRequest::FrameTypeNone;
     m_referrerPolicy = ReferrerPolicyDefault;
 }
 
 // This is used by the loader to control the number of issued parallel load requests.
 unsigned initializeMaximumHTTPConnectionCountPerHost()
 {
     // The chromium network stack already handles limiting the number of
     // parallel requests per host, so there's no need to do it here.  Therefore,
     // this is set to a high value that should never be hit in practice.
     return 10000;
 }
 
 }