Move chrome.usb to //extensions

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

-// Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
-#define CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
-
-#include <set>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/linked_ptr.h"
-#include "base/memory/ref_counted.h"
-#include "base/synchronization/lock.h"
-#include "chrome/common/extensions/api/usb.h"
-#include "components/usb_service/usb_device_handle.h"
-#include "content/public/browser/browser_thread.h"
-#include "extensions/browser/api/api_resource.h"
-#include "extensions/browser/api/api_resource_manager.h"
-
-namespace net {
-class IOBuffer;
-}  // namespace net
-
-namespace extensions {
-
-// A UsbDeviceResource is an ApiResource wrapper for a UsbDevice.
-class UsbDeviceResource : public ApiResource {
- public:
-  UsbDeviceResource(const std::string& owner_extension_id,
-                    scoped_refptr<usb_service::UsbDeviceHandle> device);
-  virtual ~UsbDeviceResource();
-
-  scoped_refptr<usb_service::UsbDeviceHandle> device() { return device_; }
-
-  static const content::BrowserThread::ID kThreadId =
-      content::BrowserThread::FILE;
-
- private:
-  friend class ApiResourceManager<UsbDeviceResource>;
-  static const char* service_name() { return "UsbDeviceResourceManager"; }
-
-  scoped_refptr<usb_service::UsbDeviceHandle> device_;
-
-  DISALLOW_COPY_AND_ASSIGN(UsbDeviceResource);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_