Merge components/usb_service into device/usb.

components/usb_service/usb_device_impl.h

-// 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 COMPONENTS_USB_SERVICE_USB_DEVICE_IMPL_H_
-#define COMPONENTS_USB_SERVICE_USB_DEVICE_IMPL_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/threading/thread_checker.h"
-#include "components/usb_service/usb_device.h"
-
-struct libusb_device;
-struct libusb_config_descriptor;
-
-namespace base {
-class SingleThreadTaskRunner;
-}
-
-namespace usb_service {
-
-class UsbDeviceHandleImpl;
-class UsbContext;
-
-typedef libusb_device* PlatformUsbDevice;
-typedef libusb_config_descriptor* PlatformUsbConfigDescriptor;
-
-class UsbDeviceImpl : public UsbDevice {
- public:
-// UsbDevice implementation:
-#if defined(OS_CHROMEOS)
-  virtual void RequestUsbAccess(
-      int interface_id,
-      const base::Callback<void(bool success)>& callback) OVERRIDE;
-#endif  // OS_CHROMEOS
-  virtual scoped_refptr<UsbDeviceHandle> Open() OVERRIDE;
-  virtual bool Close(scoped_refptr<UsbDeviceHandle> handle) OVERRIDE;
-  virtual scoped_refptr<UsbConfigDescriptor> ListInterfaces() OVERRIDE;
-
- protected:
-  friend class UsbServiceImpl;
-
-  // Called by UsbServiceImpl only;
-  UsbDeviceImpl(scoped_refptr<UsbContext> context,
-                scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
-                PlatformUsbDevice platform_device,
-                uint16 vendor_id,
-                uint16 product_id,
-                uint32 unique_id);
-
-  virtual ~UsbDeviceImpl();
-
-  // Called only be UsbService.
-  void OnDisconnect();
-
- private:
-  base::ThreadChecker thread_checker_;
-  PlatformUsbDevice platform_device_;
-
-  // Retain the context so that it will not be released before UsbDevice.
-  scoped_refptr<UsbContext> context_;
-
-  // Opened handles.
-  typedef std::vector<scoped_refptr<UsbDeviceHandleImpl> > HandlesVector;
-  HandlesVector handles_;
-
-  // Reference to the UI thread for permission-broker calls.
-  scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(UsbDeviceImpl);
-};
-
-}  // namespace usb_service
-
-#endif  // COMPONENTS_USB_SERVICE_USB_DEVICE_IMPL_H_