ServiceWorker: adding a crash key to check if a new process is launched

content/browser/service_worker/embedded_worker_instance.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/embedded_worker_instance.h"
 
 #include <utility>
 
 #include "base/bind_helpers.h"
 #include "base/macros.h"
@@ skipping 459 matching lines @@
   devtools_proxy_.reset();
   if (registry_->GetWorker(embedded_worker_id_))
     registry_->RemoveWorker(process_id(), embedded_worker_id_);
   process_handle_.reset();
 }
 
 void EmbeddedWorkerInstance::Start(
     std::unique_ptr<EmbeddedWorkerStartParams> params,
     mojom::ServiceWorkerEventDispatcherRequest dispatcher_request,
     const StatusCallback& callback) {
+  restart_count_++;
   if (!context_) {
     callback.Run(SERVICE_WORKER_ERROR_ABORT);
     // |this| may be destroyed by the callback.
     return;
   }
   DCHECK(status_ == EmbeddedWorkerStatus::STOPPED);
 
   DCHECK(!params->pause_after_download || !params->is_installed);
   DCHECK_NE(kInvalidServiceWorkerVersionId, params->service_worker_version_id);
   step_time_ = base::TimeTicks::Now();
@@ skipping 100 matching lines @@
 }
 
 EmbeddedWorkerInstance::EmbeddedWorkerInstance(
     base::WeakPtr<ServiceWorkerContextCore> context,
     int embedded_worker_id)
     : context_(context),
       registry_(context->embedded_worker_registry()),
       embedded_worker_id_(embedded_worker_id),
       status_(EmbeddedWorkerStatus::STOPPED),
       starting_phase_(NOT_STARTING),
+      restart_count_(0),
       thread_id_(kInvalidEmbeddedWorkerThreadId),
       devtools_attached_(false),
       network_accessed_for_script_(false),
       weak_factory_(this) {}
 
 void EmbeddedWorkerInstance::OnProcessAllocated(
     std::unique_ptr<WorkerProcessHandle> handle,
     ServiceWorkerMetrics::StartSituation start_situation) {
   DCHECK_EQ(EmbeddedWorkerStatus::STARTING, status_);
   DCHECK(!process_handle_);
@@ skipping 361 matching lines @@
     case SCRIPT_READ_FINISHED:
       return "Script read finished";
     case STARTING_PHASE_MAX_VALUE:
       NOTREACHED();
   }
   NOTREACHED() << phase;
   return std::string();
 }
 
 }  // namespace content