service worker: Bump update time even when the script was identical

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 490 matching lines @@
 
 void EmbeddedWorkerInstance::OnScriptReadStarted() {
   starting_phase_ = SCRIPT_READ_STARTED;
 }
 
 void EmbeddedWorkerInstance::OnScriptReadFinished() {
   starting_phase_ = SCRIPT_READ_FINISHED;
 }
 
 void EmbeddedWorkerInstance::OnScriptLoaded() {
+  starting_phase_ = SCRIPT_LOADED;
   FOR_EACH_OBSERVER(Listener, listener_list_, OnScriptLoaded());
-  starting_phase_ = SCRIPT_LOADED;
+  // |this| may be destroyed by the callback.
 }
 
 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(
@@ skipping 199 matching lines @@
     case SCRIPT_READ_FINISHED:
       return "Script read finished";
     case STARTING_PHASE_MAX_VALUE:
       NOTREACHED();
   }
   NOTREACHED() << phase;
   return std::string();
 }
 
 }  // namespace content