Stub implementation for PushRegistration.unregister().

Source/modules/push_messaging/PushRegistration.cpp

Index: Source/modules/push_messaging/PushRegistration.cpp
diff --git a/Source/modules/push_messaging/PushRegistration.cpp b/Source/modules/push_messaging/PushRegistration.cpp
index 79a9bbae88b1fdde1f6109bdc2e282ed3f1a7ff3..95252818391f1914b5fd9194bc9f9dd0e40250c5 100644
--- a/Source/modules/push_messaging/PushRegistration.cpp
+++ b/Source/modules/push_messaging/PushRegistration.cpp
@@ -5,24 +5,30 @@
 #include "config.h"
 #include "modules/push_messaging/PushRegistration.h"
 
+#include "bindings/core/v8/CallbackPromiseAdapter.h"
+#include "bindings/core/v8/ScriptPromiseResolver.h"
+#include "modules/serviceworkers/ServiceWorkerRegistration.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebPushProvider.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
-PushRegistration* PushRegistration::take(ScriptPromiseResolver*, WebType* registrationRaw)
+PushRegistration* PushRegistration::take(ScriptPromiseResolver*, WebType* pushRegistration, ServiceWorkerRegistration* serviceWorkerRegistration)
 {
-    OwnPtr<WebType> registration = adoptPtr(registrationRaw);
-    return new PushRegistration(registration->endpoint, registration->registrationId);
+    OwnPtr<WebType> registration = adoptPtr(pushRegistration);
+    return new PushRegistration(registration->endpoint, registration->registrationId, serviceWorkerRegistration);
 }
 
-void PushRegistration::dispose(WebType* registrationRaw)
+void PushRegistration::dispose(WebType* pushRegistration)
 {
-    delete registrationRaw;
+    delete pushRegistration;
 }
 
-PushRegistration::PushRegistration(const String& pushEndpoint, const String& pushRegistrationId)
+PushRegistration::PushRegistration(const String& pushEndpoint, const String& pushRegistrationId, ServiceWorkerRegistration* registration)
     : m_pushEndpoint(pushEndpoint)
     , m_pushRegistrationId(pushRegistrationId)
+    , m_registration(registration)
 {
 }
 
@@ -30,4 +36,21 @@ PushRegistration::~PushRegistration()
 {
 }
 
+ScriptPromise PushRegistration::unregister(ScriptState* scriptState)
+{
+    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+
+    WebPushProvider* webPushProvider = Platform::current()->pushProvider();
+    ASSERT(webPushProvider);
+
+    webPushProvider->unregister(m_registration->webRegistration(), new CallbackPromiseAdapter<bool, void>(resolver));
+    return promise;
+}
+
+void PushRegistration::trace(Visitor* visitor)
+{
+    visitor->trace(m_registration);
+}
+
 } // namespace blink