Try to read BOS and WebUSB descriptors from USB devices.

device/usb/usb_device_impl.h

 // Copyright 2014 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 DEVICE_USB_USB_DEVICE_IMPL_H_
 #define DEVICE_USB_USB_DEVICE_IMPL_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/threading/thread_checker.h"
 #include "device/usb/usb_descriptors.h"
 #include "device/usb/usb_device.h"
+#include "device/usb/webusb_descriptors.h"
 
 struct libusb_device;
 struct libusb_config_descriptor;
 struct libusb_device_handle;
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace dbus {
@@ skipping 24 matching lines @@
   void set_manufacturer_string(const base::string16& value) {
     manufacturer_string_ = value;
   }
   void set_product_string(const base::string16& value) {
     product_string_ = value;
   }
   void set_serial_number(const base::string16& value) {
     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_ = descriptors.Pass();
+  }
+  void set_webusb_landing_page(const GURL& url) { webusb_landing_page_ = url; }
 
   PlatformUsbDevice platform_device() const { return platform_device_; }
 
  protected:
   friend class UsbServiceImpl;
   friend class UsbDeviceHandleImpl;
 
   // Called by UsbServiceImpl only;
   UsbDeviceImpl(scoped_refptr<UsbContext> context,
                 PlatformUsbDevice platform_device,
@@ skipping 43 matching lines @@
 
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbDeviceImpl);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_USB_USB_DEVICE_IMPL_H_