[ServiceWorker] Make fetch() method better conformance with the spec.

Source/modules/serviceworkers/FetchRequestData.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef FetchRequestData_h
 #define FetchRequestData_h
 
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/Referrer.h"
@@ skipping 18 matching lines @@
 
 class FetchRequestData FINAL : public RefCountedWillBeGarbageCollectedFinalized<FetchRequestData> {
     WTF_MAKE_NONCOPYABLE(FetchRequestData);
 public:
     enum Mode { SameOriginMode, NoCORSMode, CORSMode, CORSWithForcedPreflight };
     enum Credentials { OmitCredentials, SameOriginCredentials, IncludeCredentials };
     enum Context { ChildContext, ConnectContext, DownloadContext, FontContext, FormContext, ImageContext, ManifestContext, MediaContext, NavigateContext, ObjectContext, PingContext, PopupContext, PrefetchContext, ScriptContext, ServiceWorkerContext, SharedWorkerContext, StyleContext, WorkerContext, NullContext };
     enum Tainting { BasicTainting, CORSTainting, OpaqueTainting };
 
     class Referrer {
-        WTF_MAKE_NONCOPYABLE(Referrer);
     public:
         Referrer() : m_type(ClientReferrer) { }
         ~Referrer() { }
         bool isNone() const { return m_type == NoneReferrer; }
         bool isClient() const { return m_type == ClientReferrer; }
         bool isURL() const { return m_type == URLReferrer; }
         void setNone()
         {
             m_referrer = blink::Referrer();
             m_type = NoneReferrer;
@@ skipping 11 matching lines @@
         blink::Referrer referrer() const { return m_referrer; }
     private:
         enum Type { NoneReferrer, ClientReferrer, URLReferrer };
         Type m_type;
         blink::Referrer m_referrer;
     };
 
     static PassRefPtrWillBeRawPtr<FetchRequestData> create(ExecutionContext*);
     static PassRefPtrWillBeRawPtr<FetchRequestData> create(const blink::WebServiceWorkerRequest&);
     PassRefPtrWillBeRawPtr<FetchRequestData> createRestrictedCopy(ExecutionContext*, PassRefPtr<SecurityOrigin>) const;
+    PassRefPtrWillBeRawPtr<FetchRequestData> createCopy() const;
     ~FetchRequestData();
 
     void setMethod(AtomicString method) { m_method = method; }
     const AtomicString method() const { return m_method; }
     void setURL(const KURL& url) { m_url = url; }
     const KURL& url() const { return m_url; }
     bool unsafeRequestFlag() const { return m_unsafeRequestFlag; }
     PassRefPtr<SecurityOrigin> origin() { return m_origin; }
     bool sameOriginDataURLFlag() { return m_sameOriginDataURLFlag; }
     const Referrer& referrer() const { return m_referrer; }
@@ skipping 29 matching lines @@
     Credentials m_credentials;
     // FIXME: Support m_useURLCredentialsFlag;
     // FIXME: Support m_manualRedirectFlag;
     // FIXME: Support m_redirectCount;
     Tainting m_responseTainting;
 };
 
 } // namespace blink
 
 #endif // FetchRequestData_h