add error IPC handling to dispatcher

content/child/service_worker/service_worker_dispatcher.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_H_
 #define CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_H_
 
 #include "base/id_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
@@ skipping 35 matching lines @@
 
   // |thread_safe_sender| needs to be passed in because if the call leads to
   // construction it will be needed.
   static ServiceWorkerDispatcher* ThreadSpecificInstance(
       ThreadSafeSender* thread_safe_sender);
 
  private:
   // webkit_glue::WorkerTaskRunner::Observer implementation.
   virtual void OnWorkerRunLoopStopped() OVERRIDE;
 
-  void OnServiceWorkerRegistered(int32 thread_id,
-                                 int32 request_id,
-                                 int32 service_worker_id);
-  void OnServiceWorkerUnregistered(int32 thread_id,
-                                   int32 request_id,
-                                   int32 service_worker_id);
+  void OnRegistered(int32 thread_id, int32 request_id, int32 service_worker_id);
+  void OnUnregistered(int32 thread_id,
+                      int32 request_id,
+                      int32 service_worker_id);
+  void OnRegistrationError(int32 thread_id, int32 request_id);
 
   IDMap<WebKit::WebServiceWorkerProvider::WebServiceWorkerCallbacks,
         IDMapOwnPointer> pending_callbacks_;
 
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_H_