DevTools: do not consider 'force update on reload' as error.

content/browser/service_worker/service_worker_version.cc

Index: content/browser/service_worker/service_worker_version.cc
diff --git a/content/browser/service_worker/service_worker_version.cc b/content/browser/service_worker/service_worker_version.cc
index 1cbb53484c4fb6c3748d91ce2849f4e72a673b71..d9fe5dfae72d690e21a505fe04d41b24f2b6f976 100644
--- a/content/browser/service_worker/service_worker_version.cc
+++ b/content/browser/service_worker/service_worker_version.cc
@@ -76,6 +76,9 @@ const char kClaimClientsShutdownErrorMesage[] =
     "Failed to claim clients due to Service Worker system shutdown.";
 
 const char kNotRespondingErrorMesage[] = "Service Worker is not responding.";
+const char kForceUpdateInfoMessage[] =
+    "Service Worker was updated because \"Update on load\" was "
+    "checked in DevTools Service Workers toolbar.";
 
 void RunSoon(const base::Closure& callback) {
   if (!callback.is_null())
@@ -749,6 +752,11 @@ void ServiceWorkerVersion::ReportError(ServiceWorkerStatusCode status,
   }
 }
 
+void ServiceWorkerVersion::ReportForceUpdateToDevTools() {
+  embedded_worker_->AddMessageToConsole(blink::WebConsoleMessage::LevelWarning,
+                                        kForceUpdateInfoMessage);
+}
+
 void ServiceWorkerVersion::SetStartWorkerStatusCode(
     ServiceWorkerStatusCode status) {
   start_worker_status_ = status;