[ServiceWorker] Make Request class better conformance with the spec.

Source/platform/exported/WebServiceWorkerRequest.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/WebServiceWorkerRequest.h"
 
 namespace blink {
 
 class WebServiceWorkerRequestPrivate : public RefCounted<WebServiceWorkerRequestPrivate> {
 public:
     WebServiceWorkerRequestPrivate()
-        : isReload(false)
-    {
-    }
-    WebURL url;
-    WebString method;
-    HashMap<String, String> headers;
-    bool isReload;
+        : m_isReload(false) { }
+    WebURL m_url;
+    WebString m_method;
+    WebCore::HTTPHeaderMap m_headers;
+    WebCore::Referrer m_referrer;
+    bool m_isReload;
 };
 
 WebServiceWorkerRequest::WebServiceWorkerRequest()
     : m_private(adoptRef(new WebServiceWorkerRequestPrivate))
 {
 }
 
 void WebServiceWorkerRequest::reset()
 {
     m_private.reset();
 }
 
 void WebServiceWorkerRequest::assign(const WebServiceWorkerRequest& other)
 {
     m_private = other.m_private;
 }
 
 void WebServiceWorkerRequest::setURL(const WebURL& url)
 {
-    m_private->url = url;
+    m_private->m_url = url;
 }
 
 WebURL WebServiceWorkerRequest::url() const
 {
-    return m_private->url;
+    return m_private->m_url;
 }
 
 void WebServiceWorkerRequest::setMethod(const WebString& method)
 {
-    m_private->method = method;
+    m_private->m_method = method;
 }
 
 WebString WebServiceWorkerRequest::method() const
 {
-    return m_private->method;
+    return m_private->m_method;
 }
 
 void WebServiceWorkerRequest::setHeader(const WebString& key, const WebString& value)
 {
-    m_private->headers.set(key, value);
+    if (equalIgnoringCase(key, "referer"))
+        return;
+    m_private->m_headers.add(key, value);
 }
 
-const HashMap<String, String>& WebServiceWorkerRequest::headers() const
+const WebCore::HTTPHeaderMap& WebServiceWorkerRequest::headers() const
 {
-    return m_private->headers;
+    return m_private->m_headers;
+}
+
+void WebServiceWorkerRequest::setReferrer(const WebString& referrer, WebReferrerPolicy referrerPolicy)
+{
+    m_private->m_referrer = WebCore::Referrer(referrer, static_cast<WebCore::ReferrerPolicy>(referrerPolicy));
+}
+
+const WebCore::Referrer& WebServiceWorkerRequest::referrer() const
+{
+    return m_private->m_referrer;
 }
 
 void WebServiceWorkerRequest::setIsReload(bool isReload)
 {
-    m_private->isReload = isReload;
+    m_private->m_isReload = isReload;
 }
 
 bool WebServiceWorkerRequest::isReload() const
 {
-    return m_private->isReload;
+    return m_private->m_isReload;
 }
 
 } // namespace blink