Add status() DCHECK to ServiceWorkerVersion::StartRequest.

content/browser/service_worker/service_worker_version.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_version.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <string>
@@ skipping 460 matching lines @@
   if (update_timer_.IsRunning())
     update_timer_.Reset();
 }
 
 int ServiceWorkerVersion::StartRequest(
     ServiceWorkerMetrics::EventType event_type,
     const StatusCallback& error_callback) {
   OnBeginEvent();
   DCHECK_EQ(RUNNING, running_status())
       << "Can only start a request with a running worker.";
+  DCHECK(event_type == ServiceWorkerMetrics::EventType::INSTALL ||
+         event_type == ServiceWorkerMetrics::EventType::ACTIVATE ||
+         event_type == ServiceWorkerMetrics::EventType::MESSAGE ||
+         status() == ACTIVATED)
+      << "Event of type " << static_cast<int>(event_type)
+      << " can only be dispatched to an active worker: " << status();
   return AddRequest(error_callback, &custom_requests_, REQUEST_CUSTOM,
                     event_type);
 }
 
 int ServiceWorkerVersion::StartRequestWithCustomTimeout(
     ServiceWorkerMetrics::EventType event_type,
     const StatusCallback& error_callback,
     const base::TimeDelta& timeout,
     TimeoutBehavior timeout_behavior) {
   OnBeginEvent();
@@ skipping 1487 matching lines @@
 void ServiceWorkerVersion::OnBeginEvent() {
   if (should_exclude_from_uma_ || running_status() != RUNNING ||
       idle_time_.is_null()) {
     return;
   }
   ServiceWorkerMetrics::RecordTimeBetweenEvents(base::TimeTicks::Now() -
                                                 idle_time_);
 }
 
 }  // namespace content