ServiceWorker: Replace RegistrationCallback and GetRegistrationsCallback with CallbackPromiseAdapter

content/child/service_worker/web_service_worker_registration_impl.cc

 // 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 "content/child/service_worker/web_service_worker_registration_impl.h"
 
 #include <utility>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 182 matching lines @@
 
 // static
 std::unique_ptr<blink::WebServiceWorkerRegistration::Handle>
 WebServiceWorkerRegistrationImpl::CreateHandle(
     const scoped_refptr<WebServiceWorkerRegistrationImpl>& registration) {
   if (!registration)
     return nullptr;
   return base::MakeUnique<HandleImpl>(registration);
 }
 
-blink::WebServiceWorkerRegistration::Handle*
-WebServiceWorkerRegistrationImpl::CreateLeakyHandle(
-    const scoped_refptr<WebServiceWorkerRegistrationImpl>& registration) {
-  if (!registration)
-    return nullptr;
-  return new HandleImpl(registration);
-}
-
 WebServiceWorkerRegistrationImpl::~WebServiceWorkerRegistrationImpl() {
   ServiceWorkerDispatcher* dispatcher =
       ServiceWorkerDispatcher::GetThreadSpecificInstance();
   if (dispatcher)
     dispatcher->RemoveServiceWorkerRegistration(handle_ref_->handle_id());
 }
 
 }  // namespace content