Use fetch_event_id (fetchEventID in blink) for FetchEvent

content/browser/service_worker/service_worker_dispatcher_host_unittest.cc

 // Copyright 2013 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/browser/service_worker/service_worker_dispatcher_host.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 805 matching lines @@
   version_->StartWorker(ServiceWorkerMetrics::EventType::UNKNOWN,
                         base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
   base::RunLoop().RunUntilIdle();
 
   // Set the worker status to STOPPING.
   version_->embedded_worker()->Stop();
   EXPECT_EQ(EmbeddedWorkerStatus::STOPPING, version_->running_status());
 
   // Receive a response for a timed out request. The bad message count should
   // not increase.
-  const int kRequestId = 91;  // Dummy value
+  const int kFetchEventId = 91;  // Dummy value
   dispatcher_host_->OnMessageReceived(ServiceWorkerHostMsg_FetchEventResponse(
-      version_->embedded_worker()->embedded_worker_id(), kRequestId,
+      version_->embedded_worker()->embedded_worker_id(), kFetchEventId,
       SERVICE_WORKER_FETCH_EVENT_RESULT_FALLBACK, ServiceWorkerResponse(),
       base::Time::Now()));
 
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(0, dispatcher_host_->bad_messages_received_count_);
 }
 
 }  // namespace content