More scaffolding, add class ServiceWorkerProviderHost.

content/child/service_worker/web_service_worker_provider_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_PROVIDER_IMPL_H_
 #define CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_PROVIDER_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebServiceWorkerProvider.h"
 #include "third_party/WebKit/public/platform/WebServiceWorkerProviderClient.h"
-#include "third_party/WebKit/public/web/WebFrame.h"
-#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 
 namespace blink {
-class WebString;
 class WebURL;
 }
 
-namespace IPC {
-class Sender;
-}
-
 namespace content {
 
 class ThreadSafeSender;
-class ServiceWorkerMessageFilter;
 
 class WebServiceWorkerProviderImpl
     : NON_EXPORTED_BASE(public blink::WebServiceWorkerProvider) {
  public:
   WebServiceWorkerProviderImpl(
       ThreadSafeSender* thread_safe_sender,
-      ServiceWorkerMessageFilter* message_filter,
-      const blink::WebURL& origin,
       scoped_ptr<blink::WebServiceWorkerProviderClient> client);
   virtual ~WebServiceWorkerProviderImpl();
 
+  int provider_id() const { return provider_id_; }
+
   virtual void registerServiceWorker(const blink::WebURL& pattern,
                                      const blink::WebURL& script_url,
                                      WebServiceWorkerCallbacks*);
 
   virtual void unregisterServiceWorker(const blink::WebURL& pattern,
                                        WebServiceWorkerCallbacks*);
 
  private:
+  const int provider_id_;
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_ptr<blink::WebServiceWorkerProviderClient> client_;
 
   DISALLOW_COPY_AND_ASSIGN(WebServiceWorkerProviderImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_PROVIDER_IMPL_H_