Include USB device version in chrome.usb.Device fields.

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 49b2252ac346b96c25497ab1e9110d7f5f738bc3..29ee9311266ac4c82f0d59a469243705eca99abf 100644
--- a/device/usb/mock_usb_device.cc
+++ b/device/usb/mock_usb_device.cc
@@ -16,8 +16,13 @@ MockUsbDevice::MockUsbDevice(uint16_t vendor_id,
                              const std::string& manufacturer_string,
                              const std::string& product_string,
                              const std::string& serial_number)
-    : UsbDevice(vendor_id,
+    : UsbDevice(0x0200,
+                0xff,
+                0xff,
+                0xff,

[asargent_no_longer_on_chrome, 2016/04/04 23:52:28]

optional: consider adding comments with the field names next to the test values
to make it easier for readers, e.g.

UsbDevice(0x0200,  /* usb_version */
          0xff,    /* device_class */ 
... etc.


(down below too)

+                vendor_id,
                 product_id,
+                0x0100,
                 base::UTF8ToUTF16(manufacturer_string),
                 base::UTF8ToUTF16(product_string),
                 base::UTF8ToUTF16(serial_number)) {}
@@ -28,8 +33,13 @@ MockUsbDevice::MockUsbDevice(uint16_t vendor_id,
                              const std::string& product_string,
                              const std::string& serial_number,
                              const GURL& webusb_landing_page)
-    : UsbDevice(vendor_id,
+    : UsbDevice(0x0200,
+                0xff,
+                0xff,
+                0xff,
+                vendor_id,
                 product_id,
+                0x0100,
                 base::UTF8ToUTF16(manufacturer_string),
                 base::UTF8ToUTF16(product_string),
                 base::UTF8ToUTF16(serial_number)) {