src/chrome/browser/extensions/api/usb/usb_device_resource.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/linked_ptr.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/synchronization/lock.h"
  15 #include "chrome/browser/extensions/api/api_resource.h"
  16 #include "chrome/browser/extensions/api/api_resource_manager.h"
  17 #include "chrome/browser/usb/usb_device_handle.h"
  18 #include "chrome/common/extensions/api/usb.h"
  19 #include "content/public/browser/browser_thread.h"
  20
  21 class UsbDeviceHandle;
  22
  23 namespace net {
  24 class IOBuffer;
  25 }  // namespace net
  26
  27 namespace extensions {
  28
  29 // A UsbDeviceResource is an ApiResource wrapper for a UsbDevice.
  30 class UsbDeviceResource : public ApiResource {
  31  public:
  32   UsbDeviceResource(const std::string& owner_extension_id,
  33                     scoped_refptr<UsbDeviceHandle> device);
  34   virtual ~UsbDeviceResource();
  35
  36   scoped_refptr<UsbDeviceHandle> device() {
  37     return device_;
  38   }
  39
  40   static const content::BrowserThread::ID kThreadId =
  41       content::BrowserThread::FILE;
  42
  43  private:
  44   friend class ApiResourceManager<UsbDeviceResource>;
  45   static const char* service_name() {
  46     return "UsbDeviceResourceManager";
  47   }
  48
  49   scoped_refptr<UsbDeviceHandle> device_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(UsbDeviceResource);
  52 };
  53
  54 }  // namespace extensions
  55
  56 #endif  // CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_