Implement ServiceWorkerVersion::SendMessage() (for dispatching events etc)

content/renderer/service_worker/service_worker_script_context.h

 // Copyright 2014 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_RENDERER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CONTEXT_H_
 #define CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CONTEXT_H_
 
 #include "base/basictypes.h"
 
 namespace blink {
@@ skipping 13 matching lines @@
 // rather than having EmbeddedWorkerContextClient implement it.
 // See the header comment in embedded_worker_context_client.h for the
 // potential EW/SW layering concerns.
 class ServiceWorkerScriptContext {
  public:
   ServiceWorkerScriptContext(
       EmbeddedWorkerContextClient* embedded_context,
       blink::WebServiceWorkerContextProxy* proxy);
   ~ServiceWorkerScriptContext();
 
-  void OnMessageReceived(const IPC::Message& message);
+  void OnMessageReceived(int request_id, const IPC::Message& message);
 
  private:
   // Send message back to the browser.
-  void Send(const IPC::Message& message);
+  void Send(int request_id, const IPC::Message& message);
 
   void OnFetchEvent(const ServiceWorkerFetchRequest& request);
 
   // Not owned; embedded_context_ owns this.
   EmbeddedWorkerContextClient* embedded_context_;
 
   // Not owned; this object is destroyed when proxy_ becomes invalid.
   blink::WebServiceWorkerContextProxy* proxy_;
 
+  // Used by message handlers.
+  int current_request_id_;
+
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerScriptContext);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CONTEXT_H_