ServiceWorkerVersion: remove unused parameter in DispatchInstallEvent

content/renderer/service_worker/service_worker_script_context.cc

Index: content/renderer/service_worker/service_worker_script_context.cc
diff --git a/content/renderer/service_worker/service_worker_script_context.cc b/content/renderer/service_worker/service_worker_script_context.cc
index 14661847051a74b91dcb8f6c4c6e3ae4b4e6ccb1..b94323e62556ce62729ef8b7e00773aa4920f142 100644
--- a/content/renderer/service_worker/service_worker_script_context.cc
+++ b/content/renderer/service_worker/service_worker_script_context.cc
@@ -314,8 +314,7 @@ void ServiceWorkerScriptContext::OnActivateEvent(int request_id) {
   proxy_->dispatchActivateEvent(request_id);
 }
 
-void ServiceWorkerScriptContext::OnInstallEvent(int request_id,
-                                                int active_version_id) {
+void ServiceWorkerScriptContext::OnInstallEvent(int request_id) {
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerScriptContext::OnInstallEvent");
   install_start_timings_[request_id] = base::TimeTicks::Now();