[Streams] Add "useStreamOnResponse" on WebURLRequest.

Source/platform/network/ResourceRequest.cpp

Index: Source/platform/network/ResourceRequest.cpp
diff --git a/Source/platform/network/ResourceRequest.cpp b/Source/platform/network/ResourceRequest.cpp
index 80dfcb6b94004d25754f7b6172c6bcfac34e3459..631156d5e5c0240da531313875427feee991d92f 100644
--- a/Source/platform/network/ResourceRequest.cpp
+++ b/Source/platform/network/ResourceRequest.cpp
@@ -51,6 +51,7 @@ PassOwnPtr<ResourceRequest> ResourceRequest::adopt(PassOwnPtr<CrossThreadResourc
     request->setHasUserGesture(data->m_hasUserGesture);
     request->setDownloadToFile(data->m_downloadToFile);
     request->setSkipServiceWorker(data->m_skipServiceWorker);
+    request->setUseStreamOnResponse(data->m_useStreamOnResponse);
     request->setRequestorID(data->m_requestorID);
     request->setRequestorProcessID(data->m_requestorProcessID);
     request->setAppCacheHostID(data->m_appCacheHostID);
@@ -81,6 +82,7 @@ PassOwnPtr<CrossThreadResourceRequestData> ResourceRequest::copyData() const
     data->m_hasUserGesture = m_hasUserGesture;
     data->m_downloadToFile = m_downloadToFile;
     data->m_skipServiceWorker = m_skipServiceWorker;
+    data->m_useStreamOnResponse = m_useStreamOnResponse;
     data->m_requestorID = m_requestorID;
     data->m_requestorProcessID = m_requestorProcessID;
     data->m_appCacheHostID = m_appCacheHostID;
@@ -411,6 +413,7 @@ void ResourceRequest::initialize(const KURL& url)
     m_hasUserGesture = false;
     m_downloadToFile = false;
     m_skipServiceWorker = false;
+    m_useStreamOnResponse = false;
     m_priority = ResourceLoadPriorityLowest;
     m_intraPriorityValue = 0;
     m_requestorID = 0;