Add NotificationAction.action member

Source/modules/notifications/Notification.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 75 matching lines @@
     }
 
     RefPtr<SerializedScriptValue> data;
     if (options.hasData()) {
         data = SerializedScriptValueFactory::instance().create(options.data().isolate(), options.data(), nullptr, exceptionState);
         if (exceptionState.hadException())
             return nullptr;
     }
 
     for (NotificationAction action : options.actions()) {
+        if (action.action().isEmpty()) {
+            exceptionState.throwTypeError("NotificationAction action must not be empty.");
+            return nullptr;
+        }
         if (action.title().isEmpty()) {
-            exceptionState.throwTypeError("Notification action titles must not be empty.");
+            exceptionState.throwTypeError("NotificationAction title must not be empty.");
             return nullptr;
         }
     }
 
     Notification* notification = new Notification(title, context);
 
     notification->setBody(options.body());
     notification->setTag(options.tag());
     notification->setLang(options.lang());
     notification->setDir(options.dir());
@@ skipping 194 matching lines @@
     // when Blink supports [Exposed] annotations on class members in IDL definitions.
     if (NotificationPermissionClient* permissionClient = NotificationPermissionClient::from(context))
         permissionClient->requestPermission(context, callback);
 }
 
 void Notification::webActionsToActions(const WebVector<WebNotificationAction>& webActions, Vector<NotificationAction>& actions)
 {
     actions.clear();
     actions.grow(webActions.size());
     for (size_t i = 0; i < webActions.size(); ++i) {
+        actions[i].setAction(webActions[i].action);
         actions[i].setTitle(webActions[i].title);
     }
 }
 
 bool Notification::dispatchEventInternal(PassRefPtrWillBeRawPtr<Event> event)
 {
     ASSERT(executionContext()->isContextThread());
     return EventTarget::dispatchEventInternal(event);
 }
 
@@ skipping 24 matching lines @@
     return ScriptValue(scriptState, m_serializedData->deserialize(scriptState->isolate()));
 }
 
 DEFINE_TRACE(Notification)
 {
     RefCountedGarbageCollectedEventTargetWithInlineData<Notification>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink