Move //components/webusb/ to //chrome/browser/

components/webusb/webusb_detector.h

-// Copyright 2015 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_WEBUSB_WEBUSB_DETECTOR_H_
-#define COMPONENTS_WEBUSB_WEBUSB_DETECTOR_H_
-
-#include "base/macros.h"
-#include "base/scoped_observer.h"
-#include "device/usb/usb_service.h"
-
-namespace device {
-class UsbDevice;
-}
-
-namespace webusb {
-
-class UsbDevice;
-class WebUsbBrowserClient;
-
-class WebUsbDetector : public device::UsbService::Observer {
- public:
-  explicit WebUsbDetector(WebUsbBrowserClient* webusb_browser_client);
-
-  ~WebUsbDetector() override;
-
- private:
-  // Initializes the WebUsbDetector.
-  void Initialize();
-
-  // UsbService::observer override:
-  void OnDeviceAdded(scoped_refptr<device::UsbDevice> device) override;
-
-  // UsbService::observer override:
-  void OnDeviceRemoved(scoped_refptr<device::UsbDevice> device) override;
-
-  WebUsbBrowserClient* webusb_browser_client_ = nullptr;
-
-  ScopedObserver<device::UsbService, device::UsbService::Observer> observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebUsbDetector);
-};
-
-}  // namespace webusb
-
-#endif  // COMPONENTS_WEBUSB_WEBUSB_DETECTOR_H_