SW: Propagate errors/exceptions from service worker to browser

content/browser/service_worker/service_worker_dispatcher_host.h

Index: content/browser/service_worker/service_worker_dispatcher_host.h
diff --git a/content/browser/service_worker/service_worker_dispatcher_host.h b/content/browser/service_worker/service_worker_dispatcher_host.h
index 7b992555fa18bd249ce3b5da65b200afe8b1fca9..9ba6b54bee3424e828dfc4f4839353c2a7b2c949 100644
--- a/content/browser/service_worker/service_worker_dispatcher_host.h
+++ b/content/browser/service_worker/service_worker_dispatcher_host.h
@@ -6,6 +6,7 @@
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 
 #include "base/memory/weak_ptr.h"
+#include "base/strings/string16.h"
 #include "content/browser/service_worker/service_worker_registration_status.h"
 #include "content/public/browser/browser_message_filter.h"
 
@@ -58,6 +59,11 @@ class CONTENT_EXPORT ServiceWorkerDispatcherHost : public BrowserMessageFilter {
   void OnSendMessageToBrowser(int embedded_worker_id,
                               int request_id,
                               const IPC::Message& message);
+  void OnReportException(int embedded_worker_id,
+                         const base::string16& error_message,
+                         int line_number,
+                         int column_number,
+                         const base::string16& source_url);
   void OnPostMessage(int64 registration_id,
                      const base::string16& message,
                      const std::vector<int>& sent_message_port_ids);