Allow interfaceClass USB device permissions

device/usb/mock_usb_device.cc

Index: device/usb/mock_usb_device.cc
diff --git a/device/usb/mock_usb_device.cc b/device/usb/mock_usb_device.cc
index eae631fb8f20ec32d79a3ed913a0a2b458f8a2ae..09dbcbbcf63c3d5298f921fe95173e49287f11a1 100644
--- a/device/usb/mock_usb_device.cc
+++ b/device/usb/mock_usb_device.cc
@@ -56,6 +56,24 @@ MockUsbDevice::MockUsbDevice(uint16_t vendor_id,
 MockUsbDevice::MockUsbDevice(
     uint16_t vendor_id,
     uint16_t product_id,
+    uint8_t device_class,
+    const std::vector<UsbConfigDescriptor>& configurations)
+    : UsbDevice(0x0200,  // usb_version
+                device_class,
+                0xff,  // device_subclass
+                0xff,  // device_protocol
+                vendor_id,
+                product_id,
+                0x0100,  // device_version
+                base::string16(),
+                base::string16(),
+                base::string16()) {
+  configurations_ = configurations;
+}
+
+MockUsbDevice::MockUsbDevice(
+    uint16_t vendor_id,
+    uint16_t product_id,
     const std::string& manufacturer_string,
     const std::string& product_string,
     const std::string& serial_number,