Introduce url_list to the Response scheme of CacheStorage.

third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerResponse.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 WebServiceWorkerResponse_h
 #define WebServiceWorkerResponse_h
 
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebPrivatePtr.h"
 #include "public/platform/WebString.h"
@@ skipping 26 matching lines @@
     assign(other);
   }
   WebServiceWorkerResponse& operator=(const WebServiceWorkerResponse& other) {
     assign(other);
     return *this;
   }
 
   void reset();
   void assign(const WebServiceWorkerResponse&);
 
-  void setURL(const WebURL&);
-  WebURL url() const;
+  void setURLList(const WebVector<WebURL>&);
+  const WebVector<WebURL>& urlList() const;
 
   void setStatus(unsigned short);
   unsigned short status() const;
 
   void setStatusText(const WebString&);
   WebString statusText() const;
 
   void setResponseType(WebServiceWorkerResponseType);
   WebServiceWorkerResponseType responseType() const;
 
@@ skipping 34 matching lines @@
   PassRefPtr<BlobDataHandle> blobDataHandle() const;
 #endif
 
  private:
   WebPrivatePtr<WebServiceWorkerResponsePrivate> m_private;
 };
 
 }  // namespace blink
 
 #endif  // WebServiceWorkerResponse_h