Introduce the PushSubscription.curve25519dh attribute (3/3)

Source/modules/push_messaging/PushSubscription.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 "modules/push_messaging/PushSubscription.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/V8ObjectBuilder.h"
 #include "modules/push_messaging/PushError.h"
 #include "modules/serviceworkers/ServiceWorkerRegistration.h"
 #include "public/platform/Platform.h"
 #include "public/platform/modules/push_messaging/WebPushProvider.h"
 #include "public/platform/modules/push_messaging/WebPushSubscription.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
 PushSubscription* PushSubscription::take(ScriptPromiseResolver*, WebPushSubscription* pushSubscription, ServiceWorkerRegistration* serviceWorkerRegistration)
 {
     OwnPtr<WebPushSubscription> subscription = adoptPtr(pushSubscription);
-    return new PushSubscription(subscription->endpoint, serviceWorkerRegistration);
+    return new PushSubscription(*subscription, serviceWorkerRegistration);
 }
 
 void PushSubscription::dispose(WebPushSubscription* pushSubscription)
 {
     if (pushSubscription)
         delete pushSubscription;
 }
 
-PushSubscription::PushSubscription(const KURL& endpoint, ServiceWorkerRegistration* serviceWorkerRegistration)
-    : m_endpoint(endpoint)
+PushSubscription::PushSubscription(const WebPushSubscription& subscription, ServiceWorkerRegistration* serviceWorkerRegistration)
+    : m_endpoint(subscription.endpoint)
+    , m_curve25519dh(DOMArrayBuffer::create(subscription.curve25519dh.data(), subscription.curve25519dh.size()))
     , m_serviceWorkerRegistration(serviceWorkerRegistration)
 {
 }
 
 PushSubscription::~PushSubscription()
 {
 }
 
 KURL PushSubscription::endpoint() const
 {
     return m_endpoint;
 }
 
+PassRefPtr<DOMArrayBuffer> PushSubscription::curve25519dh() const
+{
+    return m_curve25519dh;
+}
+
 ScriptPromise PushSubscription::unsubscribe(ScriptState* scriptState)
 {
     RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
 
     WebPushProvider* webPushProvider = Platform::current()->pushProvider();
     ASSERT(webPushProvider);
 
     webPushProvider->unsubscribe(m_serviceWorkerRegistration->webRegistration(), new CallbackPromiseAdapter<bool, PushError>(resolver));
     return promise;
 }
 
 ScriptValue PushSubscription::toJSONForBinding(ScriptState* scriptState)
 {
     V8ObjectBuilder result(scriptState);
     result.addString("endpoint", endpoint());
 
+    // TODO(peter): Include |curve25519dh| in the serialized JSON blob if the intended
+    // serialization behavior gets defined in the spec.
+
     return result.scriptValue();
 }
 
 DEFINE_TRACE(PushSubscription)
 {
     visitor->trace(m_serviceWorkerRegistration);
 }
 
 } // namespace blink