// 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_CHILD_SERVICE_WORKER_SERVICE_WORKER_NETWORK_PROVIDER_IMPL_H_
#define CONTENT_CHILD_SERVICE_WORKER_SERVICE_WORKER_NETWORK_PROVIDER_IMPL_H_
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/supports_user_data.h"
#include "content/common/content_export.h"
namespace content {
// A unique provider_id is generated for each instance.
// Instantiated prior to the main resource load being started and remains
// allocated until after the last subresource load has occurred.
// This is used to track the lifetime of a Document to create
// and dispose the ServiceWorkerProviderHost in the browser process
// to match its lifetime. Each request coming from the Document is
// tagged with this id in willSendRequest.
//
// Basically, it's a scoped integer that sends an ipc upon construction
// and destruction.
class CONTENT_EXPORT ServiceWorkerNetworkProvider
: public base::SupportsUserData::Data {
public:
// Ownership is transferred to the DocumentState.
static void AttachToDocumentState(
base::SupportsUserData* document_state,
scoped_ptr<ServiceWorkerNetworkProvider> network_provider);
static ServiceWorkerNetworkProvider* FromDocumentState(
base::SupportsUserData* document_state);
ServiceWorkerNetworkProvider();
virtual ~ServiceWorkerNetworkProvider();
int provider_id() const { return provider_id_; }
// This method is called for a provider that's associated with a
// running service worker script. The version_id indicates which
// ServiceWorkerVersion should be used.
void SetServiceWorkerVersionId(int64 version_id);
private:
const int provider_id_;
DISALLOW_COPY_AND_ASSIGN(ServiceWorkerNetworkProvider);
};
} // namespace content
#endif // CONTENT_CHILD_SERVICE_WORKER_WEB_SERVICE_WORKER_PROVIDER_IMPL_H_