Add a timeout to push message processing.

chrome/browser/push_messaging/push_messaging_service_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 "chrome/browser/push_messaging/push_messaging_service_impl.h"
 
 #include <vector>
 
 #include "base/barrier_closure.h"
 #include "base/base64url.h"
@@ skipping 342 matching lines @@
   // TODO(mvanouwerkerk): Show a warning in the developer console of the
   // Service Worker corresponding to app_id (and/or on an internals page).
   // See https://crbug.com/508516 for options.
   switch (status) {
     // Call EnforceUserVisibleOnlyRequirements if the message was delivered to
     // the Service Worker JavaScript, even if the website's event handler failed
     // (to prevent sites deliberately failing in order to avoid having to show
     // notifications).
     case content::PUSH_DELIVERY_STATUS_SUCCESS:
     case content::PUSH_DELIVERY_STATUS_EVENT_WAITUNTIL_REJECTED:
+    case content::PUSH_DELIVERY_STATUS_TIMEOUT:
 #if defined(ENABLE_NOTIFICATIONS)
       // Only enforce the user visible requirements if this is currently running
       // as the delivery callback for the last in-flight message, and silent
       // push has not been enabled through a command line flag.
       if (in_flight_message_deliveries_.count(app_id) == 1 &&
           !base::CommandLine::ForCurrentProcess()->HasSwitch(
               switches::kAllowSilentPush)) {
         notification_manager_.EnforceUserVisibleOnlyRequirements(
             requesting_origin, service_worker_registration_id,
             completion_closure_runner.Release());
@@ skipping 586 matching lines @@
 }
 
 instance_id::InstanceIDDriver* PushMessagingServiceImpl::GetInstanceIDDriver()
     const {
   instance_id::InstanceIDProfileService* instance_id_profile_service =
       instance_id::InstanceIDProfileServiceFactory::GetForProfile(profile_);
   CHECK(instance_id_profile_service);
   CHECK(instance_id_profile_service->driver());
   return instance_id_profile_service->driver();
 }