Update webusb_descriptors.cc to parse the new WebUSB descriptors.

device/usb/usb_device_impl.h

Index: device/usb/usb_device_impl.h
diff --git a/device/usb/usb_device_impl.h b/device/usb/usb_device_impl.h
index a64e3d1b08d34223af19342f3725bcac8e446fbb..e41dac090f8e8b0f5269f15ad7ce0cd5b157faf1 100644
--- a/device/usb/usb_device_impl.h
+++ b/device/usb/usb_device_impl.h
@@ -61,8 +61,9 @@ class UsbDeviceImpl : public UsbDevice {
     serial_number_ = value;
   }
   void set_device_path(const std::string& value) { device_path_ = value; }
-  void set_webusb_allowed_origins(scoped_ptr<WebUsbDescriptorSet> descriptors) {
-    webusb_allowed_origins_ = std::move(descriptors);
+  void set_webusb_allowed_origins(
+      scoped_ptr<WebUsbAllowedOrigins> allowed_origins) {
+    webusb_allowed_origins_ = std::move(allowed_origins);
   }
   void set_webusb_landing_page(const GURL& url) { webusb_landing_page_ = url; }