Merge components/usb_service into device/usb.

components/usb_service/usb_device.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_H_
-#define COMPONENTS_USB_SERVICE_USB_DEVICE_H_
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "components/usb_service/usb_service_export.h"
-
-namespace usb_service {
-
-class UsbDeviceHandle;
-class UsbConfigDescriptor;
-
-// A UsbDevice object represents a detected USB device, providing basic
-// information about it. For further manipulation of the device, a
-// UsbDeviceHandle must be created from Open() method.
-class USB_SERVICE_EXPORT UsbDevice
-    : public base::RefCountedThreadSafe<UsbDevice> {
- public:
-  // Accessors to basic information.
-  uint16 vendor_id() const { return vendor_id_; }
-  uint16 product_id() const { return product_id_; }
-  uint32 unique_id() const { return unique_id_; }
-
-#if defined(OS_CHROMEOS)
-  // On ChromeOS, if an interface of a claimed device is not claimed, the
-  // permission broker can change the owner of the device so that the unclaimed
-  // interfaces can be used. If this argument is missing, permission broker will
-  // not be used and this method fails if the device is claimed.
-  virtual void RequestUsbAccess(
-      int interface_id,
-      const base::Callback<void(bool success)>& callback) = 0;
-#endif  // OS_CHROMEOS
-
-  // Creates a UsbDeviceHandle for further manipulation.
-  // Blocking method. Must be called on FILE thread.
-  virtual scoped_refptr<UsbDeviceHandle> Open() = 0;
-
-  // Explicitly closes a device handle. This method will be automatically called
-  // by the destructor of a UsbDeviceHandle as well.
-  // Closing a closed handle is a safe
-  // Blocking method. Must be called on FILE thread.
-  virtual bool Close(scoped_refptr<UsbDeviceHandle> handle) = 0;
-
-  // Lists the interfaces provided by the device and fills the given
-  // UsbConfigDescriptor.
-  // Blocking method. Must be called on FILE thread.
-  virtual scoped_refptr<UsbConfigDescriptor> ListInterfaces() = 0;
-
- protected:
-  UsbDevice(uint16 vendor_id, uint16 product_id, uint32 unique_id)
-      : vendor_id_(vendor_id), product_id_(product_id), unique_id_(unique_id) {}
-
-  virtual ~UsbDevice() {}
-
- private:
-  friend class base::RefCountedThreadSafe<UsbDevice>;
-
-  const uint16 vendor_id_;
-  const uint16 product_id_;
-  const uint32 unique_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(UsbDevice);
-};
-
-}  // namespace usb_service
-
-#endif  // COMPONENTS_USB_SERVICE_USB_DEVICE_H_