
Two optional tests for usb_service::UsbService that use the new USB test gadget to verify that we can enumerate devices and detect connect and disconnect events. Since not all testers have this hardware the tests are only run when the --enable-gadget-tests flag is provided. BUG=396682 Review URL: https://codereview.chromium.org/420563008 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287051 0039d316-1c4b-4281-b951-d872f2087c98