ServiceWorker: log when the script's loaded separately from thread start (chromium)

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 <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 348 matching lines @@
   }
   DCHECK(start_callback_.is_null());
   start_callback_ = callback;
 }
 
 void EmbeddedWorkerInstance::OnReadyForInspection() {
   if (devtools_proxy_)
     devtools_proxy_->NotifyWorkerReadyForInspection();
 }
 
-void EmbeddedWorkerInstance::OnScriptLoaded(int thread_id) {
+void EmbeddedWorkerInstance::OnScriptLoaded() {
   starting_phase_ = SCRIPT_LOADED;
+}
+
+void EmbeddedWorkerInstance::OnThreadStarted(int thread_id) {
+  starting_phase_ = THREAD_STARTED;
   if (!start_timing_.is_null()) {
     if (network_accessed_for_script_) {
       UMA_HISTOGRAM_TIMES("EmbeddedWorkerInstance.ScriptLoadWithNetworkAccess",
                           base::TimeTicks::Now() - start_timing_);
     } else {
       UMA_HISTOGRAM_TIMES(
           "EmbeddedWorkerInstance.ScriptLoadWithoutNetworkAccess",
           base::TimeTicks::Now() - start_timing_);
     }
     // Reset |start_timing_| to measure the time excluding the process
     // allocation time and the script loading time.
     start_timing_ = base::TimeTicks::Now();
   }
   thread_id_ = thread_id;
-  FOR_EACH_OBSERVER(Listener, listener_list_, OnScriptLoaded());
+  FOR_EACH_OBSERVER(Listener, listener_list_, OnThreadStarted());
 
   mojo::ServiceProviderPtr exposed_services;
   service_registry_->Bind(GetProxy(&exposed_services));
   mojo::ServiceProviderPtr services;
   mojo::InterfaceRequest<mojo::ServiceProvider> services_request =
       GetProxy(&services);
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(SetupMojoOnUIThread, process_id_, thread_id_,
                  base::Passed(&services_request),
@@ skipping 134 matching lines @@
     case REGISTERING_TO_DEVTOOLS:
       return "Registering to DevTools";
     case SENT_START_WORKER:
       return "Sent StartWorker message to renderer";
     case SCRIPT_DOWNLOADING:
       return "Script downloading";
     case SCRIPT_LOADED:
       return "Script loaded";
     case SCRIPT_EVALUATED:
       return "Script evaluated";
+    case THREAD_STARTED:
+      return "Thread started";
     case STARTING_PHASE_MAX_VALUE:
       NOTREACHED();
   }
   NOTREACHED() << phase;
   return std::string();
 }
 
 }  // namespace content