ServiceWorker: Implement updatefound event and version attributes (Chromium)

content/browser/service_worker/service_worker_context_core.cc

Index: content/browser/service_worker/service_worker_context_core.cc
diff --git a/content/browser/service_worker/service_worker_context_core.cc b/content/browser/service_worker/service_worker_context_core.cc
index 582a4c585a638ac460cab788acd6f4f046acd0cb..f1d80ab8e6569b10079e0039c04a82033937332b 100644
--- a/content/browser/service_worker/service_worker_context_core.cc
+++ b/content/browser/service_worker/service_worker_context_core.cc
@@ -102,6 +102,7 @@ ServiceWorkerContextCore::ServiceWorkerContextCore(
       embedded_worker_registry_(EmbeddedWorkerRegistry::Create(AsWeakPtr())),
       job_coordinator_(new ServiceWorkerJobCoordinator(AsWeakPtr())),
       next_handle_id_(0),
+      next_registration_handle_id_(0),
       observer_list_(observer_list) {
 }
 
@@ -120,6 +121,7 @@ ServiceWorkerContextCore::ServiceWorkerContextCore(
           old_context->embedded_worker_registry())),
       job_coordinator_(new ServiceWorkerJobCoordinator(AsWeakPtr())),
       next_handle_id_(0),
+      next_registration_handle_id_(0),
       observer_list_(old_context->observer_list_) {
 }
 
@@ -317,6 +319,10 @@ int ServiceWorkerContextCore::GetNewServiceWorkerHandleId() {
   return next_handle_id_++;
 }
 
+int ServiceWorkerContextCore::GetNewRegistrationHandleId() {
+  return next_registration_handle_id_++;
+}
+
 void ServiceWorkerContextCore::ScheduleDeleteAndStartOver() const {
   storage_->Disable();
   base::MessageLoop::current()->PostTask(