Move chrome.usb to //extensions

extensions/common/api/usb.idl

 // 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.
 
 // Use the <code>chrome.usb</code> API to interact with connected USB
 // devices. This API provides access to USB operations from within the context
 // of an app. Using this API, apps can function as drivers for hardware devices.
 namespace usb {
 
   // Direction, Recipient, RequestType, and TransferType all map to their
@@ skipping 287 matching lines @@
     // In that case you must call |getDevices| or |findDevices| again to acquire
     // the device.
     //
     // |handle|: A connection handle to reset.
     // |callback|: Invoked once the device is reset with a boolean indicating
     // whether the reset is completed successfully.
     static void resetDevice(ConnectionHandle handle,
                             ResetDeviceCallback callback);
   };
 };