Fix conversion to WebServiceWorkerResponse headers.

Source/modules/serviceworkers/Response.cpp

 // 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.
 
 #include "config.h"
 #include "Response.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/fileapi/Blob.h"
@@ skipping 18 matching lines @@
     response->setURL(webResponse.url());
     response->setStatus(webResponse.status());
     response->setStatusMessage(webResponse.statusText());
     return response;
 }
 
 Headers* createHeadersFromWebResponse(const WebServiceWorkerResponse& webResponse)
 {
     Headers* headers = Headers::create();
     TrackExceptionState exceptionState;
-    for (HashMap<String, String>::const_iterator i = webResponse.headers().begin(), end = webResponse.headers().end(); i != end; ++i) {
+    for (HTTPHeaderMap::const_iterator i = webResponse.headers().begin(), end = webResponse.headers().end(); i != end; ++i) {
         headers->append(i->key, i->value, exceptionState);
         if (exceptionState.hadException())
             return 0;
     }
     return headers;
 }
 
 }
 
 Response* Response::create(ExecutionContext* context, Blob* body, const Dictionary& responseInit, ExceptionState& exceptionState)
@@ skipping 189 matching lines @@
 }
 
 void Response::trace(Visitor* visitor)
 {
     Body::trace(visitor);
     visitor->trace(m_response);
     visitor->trace(m_headers);
 }
 
 } // namespace blink