Stop Service Workers that execute JavaScript for too long.

content/browser/service_worker/embedded_worker_instance.h

Index: content/browser/service_worker/embedded_worker_instance.h
diff --git a/content/browser/service_worker/embedded_worker_instance.h b/content/browser/service_worker/embedded_worker_instance.h
index 7523e6d0a4f6fb46c85ef2e5212306a97a13dcda..c69301223fc0dc12e45057bff7761ee0b83d67a6 100644
--- a/content/browser/service_worker/embedded_worker_instance.h
+++ b/content/browser/service_worker/embedded_worker_instance.h
@@ -50,6 +50,7 @@ class CONTENT_EXPORT EmbeddedWorkerInstance {
   class Listener {
    public:
     virtual ~Listener() {}
+    virtual void OnScriptLoaded() {}
     virtual void OnStarted() {}
     virtual void OnStopped(Status old_status) {}
     virtual void OnPausedAfterDownload() {}