ServiceWorker: Let the proxy drive state change

content/child/service_worker/web_service_worker_impl.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_WEB_SERVICE_WORKER_IMPL_H_
 #define CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
@@ skipping 10 matching lines @@
 class ThreadSafeSender;
 struct ServiceWorkerObjectInfo;
 
 class WebServiceWorkerImpl
     : NON_EXPORTED_BASE(public blink::WebServiceWorker) {
  public:
   WebServiceWorkerImpl(const ServiceWorkerObjectInfo& info,
                        ThreadSafeSender* thread_safe_sender);
   virtual ~WebServiceWorkerImpl();
 
-  void SetState(blink::WebServiceWorkerState new_state);
-
   virtual void setProxy(blink::WebServiceWorkerProxy* proxy);
+  virtual void setState(blink::WebServiceWorkerState new_state);
   virtual blink::WebURL scope() const;
   virtual blink::WebURL url() const;
   virtual blink::WebServiceWorkerState state() const;
   virtual void postMessage(const blink::WebString& message,
                            blink::WebMessagePortChannelArray* channels);
 
+  // Informs the proxy that the state changed on the browser side. The proxy may
+  // queue the change and call setState() to commit it when ready.
+  void OnStateChanged(blink::WebServiceWorkerState new_state);
+
  private:
   const int handle_id_;
   const GURL scope_;
   const GURL url_;
   blink::WebServiceWorkerState state_;
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   blink::WebServiceWorkerProxy* proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(WebServiceWorkerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_IMPL_H_