Move ServiceWorker public headers to public/{web,platform}/modules/serviceworker (1/3)

public/platform/modules/serviceworker/WebServiceWorkerEventResult.h

 // 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.
 
 #ifndef WebServiceWorkerEventResult_h
 #define WebServiceWorkerEventResult_h
 
 namespace blink {
 
 // Indicates how the service worker handled an event.
 enum WebServiceWorkerEventResult {
     // The event dispatch completed with no rejections.
     WebServiceWorkerEventResultCompleted = 0,
     // The service worker associated the event with a promise that was rejected
     // (e.g., the promise passed to waitUntil for an install event was rejected).
     WebServiceWorkerEventResultRejected,
     WebServiceWorkerEventResultLast = WebServiceWorkerEventResultRejected
 };
 
 } // namespace blink
 
 #endif // WebServiceWorkerEventResult_h