ServiceWorker: Add a Response ctor that accepts the body as a Blob

public/platform/WebServiceWorkerResponse.h

Index: public/platform/WebServiceWorkerResponse.h
diff --git a/public/platform/WebServiceWorkerResponse.h b/public/platform/WebServiceWorkerResponse.h
index 9e5a25c39550a4e09af6ce133c15559e9981748b..8325f2c725e325884597367bc9d4dbb4b2eaa949 100644
--- a/public/platform/WebServiceWorkerResponse.h
+++ b/public/platform/WebServiceWorkerResponse.h
@@ -54,7 +54,8 @@ public:
     const HashMap<String, String>& headers() const;
 #endif
 
-    // FIXME: Eventually this should have additional methods such as for blob.
+    void setBlobUUID(const WebString&);

[michaeln1, 2014/05/30 20:09:35]

maybe put a setBlobDataHandle(xxx) setter in the INSIDE_BLINK block and leave
the UUID setter out until we need to construct these from withing chromium

additionally, if we have already have use case for calling this setter from
inside chromium, include all the params required to cons up a BDH:
uuid, type, size.

    // For deserialization of script values and ipc messages.
    static PassRefPtr<BlobDataHandle> create(const String& uuid, const String&
type, long long size)
    {
        return adoptRef(new BlobDataHandle(uuid, type, size));
    }

+    WebString blobUUID() const;
 
 private:
     WebPrivatePtr<WebServiceWorkerResponsePrivate> m_private;