[Streams] Add "useStreamOnResponse" on WebURLRequest.

Source/platform/network/ResourceRequest.h

Index: Source/platform/network/ResourceRequest.h
diff --git a/Source/platform/network/ResourceRequest.h b/Source/platform/network/ResourceRequest.h
index a432ccce7e6e2f96a008700752924a15d50b9a27..59552acc3f412ee4f1680c6fd214ee713ea3f1cd 100644
--- a/Source/platform/network/ResourceRequest.h
+++ b/Source/platform/network/ResourceRequest.h
@@ -175,6 +175,10 @@ public:
     bool skipServiceWorker() const { return m_skipServiceWorker; }
     void setSkipServiceWorker(bool skipServiceWorker) { m_skipServiceWorker = skipServiceWorker; }
 
+    // True if the requestor wants WebDataConsumerHandle as response body.

[tyoshino (SeeGerritForStatus), 2014/11/12 04:22:03]

wants to receive a response body as WebDataConsumerHandle?

[yhirano, 2014/11/12 04:52:09]

Done.

+    bool useStreamOnResponse() const { return m_useStreamOnResponse; }
+    void setUseStreamOnResponse(bool useStreamOnResponse) { m_useStreamOnResponse = useStreamOnResponse; }
+
     // Extra data associated with this request.
     ExtraData* extraData() const { return m_extraData.get(); }
     void setExtraData(PassRefPtr<ExtraData> extraData) { m_extraData = extraData; }
@@ -218,6 +222,7 @@ private:
     bool m_hasUserGesture : 1;
     bool m_downloadToFile : 1;
     bool m_skipServiceWorker : 1;
+    bool m_useStreamOnResponse : 1;
     ResourceLoadPriority m_priority;
     int m_intraPriorityValue;
     int m_requestorID;
@@ -258,6 +263,7 @@ public:
     bool m_hasUserGesture;
     bool m_downloadToFile;
     bool m_skipServiceWorker;
+    bool m_useStreamOnResponse;
     ResourceLoadPriority m_priority;
     int m_intraPriorityValue;
     int m_requestorID;