1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef EXTENSIONS_BROWSER_API_USB_USB_DEVICE_RESOURCE_H_
6#define EXTENSIONS_BROWSER_API_USB_USB_DEVICE_RESOURCE_H_
7
8#include <string>
9
10#include "base/basictypes.h"
11#include "base/memory/ref_counted.h"
12#include "base/synchronization/lock.h"
13#include "content/public/browser/browser_thread.h"
14#include "device/usb/usb_device_handle.h"
15#include "extensions/browser/api/api_resource.h"
16#include "extensions/browser/api/api_resource_manager.h"
17
18namespace usb_service {
19class UsbDeviceHandle;
20}
21
22namespace extensions {
23
24// A UsbDeviceResource is an ApiResource wrapper for a UsbDevice.
25class UsbDeviceResource : public ApiResource {
26 public:
27  static const content::BrowserThread::ID kThreadId =
28      content::BrowserThread::FILE;
29
30  UsbDeviceResource(const std::string& owner_extension_id,
31                    scoped_refptr<device::UsbDeviceHandle> device);
32  virtual ~UsbDeviceResource();
33
34  scoped_refptr<device::UsbDeviceHandle> device() { return device_; }
35
36  virtual bool IsPersistent() const OVERRIDE;
37
38 private:
39  friend class ApiResourceManager<UsbDeviceResource>;
40  static const char* service_name() { return "UsbDeviceResourceManager"; }
41
42  scoped_refptr<device::UsbDeviceHandle> device_;
43
44  DISALLOW_COPY_AND_ASSIGN(UsbDeviceResource);
45};
46
47}  // namespace extensions
48
49#endif  // EXTENSIONS_BROWSER_API_USB_USB_DEVICE_RESOURCE_H_
50