Support embedded created Response objects in ServiceWorker.

Source/platform/exported/WebServiceWorkerResponse.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 "public/platform/WebServiceWorkerResponse.h"
 
 #include "platform/blob/BlobData.h"
+#include "public/platform/WebHTTPHeaderVisitor.h"
+#include "wtf/HashMap.h"
 
 namespace blink {
 
 class WebServiceWorkerResponsePrivate : public RefCounted<WebServiceWorkerResponsePrivate> {
 public:
     WebURL url;
     unsigned short status;
     WebString statusText;
+    // FIXME: change headers to a data type that preserves order.
     HashMap<String, String> headers;
     RefPtr<BlobDataHandle> blobDataHandle;
 };
 
 WebServiceWorkerResponse::WebServiceWorkerResponse()
     : m_private(adoptRef(new WebServiceWorkerResponsePrivate))
 {
 }
 
 void WebServiceWorkerResponse::reset()
@@ skipping 46 matching lines @@
     Vector<String> keys;
     copyKeysToVector(m_private->headers, keys);
     return keys;
 }
 
 WebString WebServiceWorkerResponse::getHeader(const WebString& key) const
 {
     return m_private->headers.get(key);
 }
 
+void WebServiceWorkerResponse::visitHTTPHeaderFields(WebHTTPHeaderVisitor* headerVisitor) const
+{
+    for (HashMap<String, String>::const_iterator i = m_private->headers.begin(), end = m_private->headers.end(); i != end; ++i)
+        headerVisitor->visitHeader(i->key, i->value);
+}
+
 WebString WebServiceWorkerResponse::blobUUID() const
 {
     if (!m_private->blobDataHandle)
         return WebString();
     return m_private->blobDataHandle->uuid();
 }
 
 void WebServiceWorkerResponse::setHeaders(const HashMap<String, String>& headers)
 {
     m_private->headers = headers;
 }
 
 const HashMap<String, String>& WebServiceWorkerResponse::headers() const
 {
     return m_private->headers;
 }
 
 void WebServiceWorkerResponse::setBlobDataHandle(PassRefPtr<BlobDataHandle> blobDataHandle)
 {
     m_private->blobDataHandle = blobDataHandle;
 }
 
 PassRefPtr<BlobDataHandle> WebServiceWorkerResponse::blobDataHandle() const
 {
     return m_private->blobDataHandle;
 }
 
 } // namespace blink