Experimental USB API

chrome/browser/extensions/api/api_resource_controller.cc

 // 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.
 
 #include "chrome/browser/extensions/api/api_resource_controller.h"
 #include "chrome/browser/extensions/api/serial/serial_connection.h"
 #include "chrome/browser/extensions/api/socket/socket.h"
+#include "chrome/browser/extensions/api/usb/usb_device_resource.h"
 
 namespace extensions {
 
 APIResourceController::APIResourceController() : next_api_resource_id_(1) {}
 
 APIResourceController::~APIResourceController() {}
 
 APIResource* APIResourceController::GetAPIResource(int api_resource_id) const {
   // TODO(miket): verify that the extension asking for the APIResource is the
   // same one that created it.
@@ skipping 54 matching lines @@
   return static_cast<Socket*>(GetAPIResource(APIResource::SocketResource,
                                              api_resource_id));
 }
 
 SerialConnection* APIResourceController::GetSerialConnection(
     int api_resource_id) const {
   return static_cast<SerialConnection*>(
       GetAPIResource(APIResource::SerialConnectionResource, api_resource_id));
 }
 
+UsbDeviceResource* APIResourceController::GetUsbDeviceResource(
+    int api_resource_id) const {
+  return static_cast<UsbDeviceResource*>(GetAPIResource(
+      APIResource::UsbDeviceResource, api_resource_id));
+}
+
 }  // namespace extensions