UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.45 Safari/537.36
Platform: 10046.0.2017_11_09_1042 (Test Build - davrod01) developer-build elm

Steps to reproduce the problem:
1. Follow steps in https://www.chromium.org/chromium-os/testing/power-testing
2. Cannot run test: login screen goes to screen saying "Verify that it's you. This device isn't recognised. For your security Google wants to make sure that it's really you. powerloadtest@gmail.com"

What is the expected behavior?

What went wrong?
I built an image with "build_image --board=elm test", as recommended on https://www.chromium.org/chromium-os/testing/power-testing

The login screen hangs on an account verification step.

When running from a remote host via test_that:

/tmp/test_that_results_qkezVr/results-1-power_LoadTest                [  FAILED  ]
/tmp/test_that_results_qkezVr/results-1-power_LoadTest                  FAIL: Unhandled TimeoutException: Timed out while waiting 60s for py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60).
/tmp/test_that_results_qkezVr/results-1-power_LoadTest/power_LoadTest [  FAILED  ]
/tmp/test_that_results_qkezVr/results-1-power_LoadTest/power_LoadTest   FAIL: Unhandled TimeoutException: Timed out while waiting 60s for py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60).
/tmp/test_that_results_qkezVr/results-1-power_LoadTest/power_LoadTest   11/09 11:31:00.970 ERROR|           browser:0068| Failed with TimeoutException while starting the browser backend.
/tmp/test_that_results_qkezVr/results-2-power_LoadTest                [  FAILED  ]
/tmp/test_that_results_qkezVr/results-2-power_LoadTest                  FAIL: Unhandled TimeoutException: Timed out while waiting 60s for py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60).
/tmp/test_that_results_qkezVr/results-2-power_LoadTest/power_LoadTest [  FAILED  ]
/tmp/test_that_results_qkezVr/results-2-power_LoadTest/power_LoadTest   FAIL: Unhandled TimeoutException: Timed out while waiting 60s for py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60).
/tmp/test_that_results_qkezVr/results-2-power_LoadTest/power_LoadTest   11/09 11:32:39.939 ERROR|           browser:0068| Failed with TimeoutException while starting the browser backend.

When running locally:

11:41:31 INFO | Writing results to /usr/local/autotest/results/default
11:41:31 INFO | START	----	----	timestamp=1510227691	localtime=Nov 09 11:41:31	
11:41:31 INFO | File /var/lib/cleanup_logs_paused was already present
11:41:31 INFO | 	START	power_LoadTest	power_LoadTest	timestamp=1510227691	localtime=Nov 09 11:41:31	
11:41:31 WARNI| Unable to import numpy due to: Incorrect numpy version found, expected 1.8.0 <= version < 1.12.0, found version 1.7.1
11:41:31 WARNI| Unable to import numpy due to: Incorrect numpy version found, expected 1.8.0 <= version < 1.12.0, found version 1.7.1
11:41:32 INFO | Temperature reading: sbs-1-000b_temp1_input:25700 temp:39142 
11:41:33 INFO | Default backlight brightness percent = 37.500000
11:41:33 WARNI| GPU frequency tracing not enabled.
11:41:33 INFO | Temperature reading: sbs-1-000b_temp1_input:25700 temp:36677 
11:41:33 INFO | Have low_battery_shutdown option
11:41:33 WARNI| test low battery threshold is below system low battery requirement.  Setting to 6.000000
11:41:33 INFO | ChromeOS BOARD = elm_2.1GHz_4GB
11:41:33 INFO | Can't find or read PSR status file
11:41:33 INFO | Assuming no keyboard backlight due to :: Keyboard backlight supportis not enabled
11:41:33 INFO | BattOr power monitor is not connected.
11:41:33 INFO | BattOr power monitor is not connected.
11:41:33 INFO | Chose browser: PossibleCrOSBrowser(browser_type=system)
11:41:33 INFO | (Re)starting the ui (logs the user out)
11:41:34 INFO | Restarting Chrome (pid=16687) with remote port
11:41:34 INFO | dbus-send --system --type=method_call --dest=org.chromium.SessionManager /org/chromium/SessionManager org.chromium.SessionManagerInterface.EnableChromeTesting boolean:true array:string:"--enable-net-benchmarking,--metrics-recording-only,--no-default-browser-check,--no-first-run,--enable-gpu-benchmarking,--load-extension=/tmp/extension_Qlrs5/extension,--disable-component-extensions-with-background-pages,--disable-default-apps,--disable-search-geolocation-disclosure,--enable-smooth-scrolling,--enable-threaded-compositing,--remote-debugging-port=0,--start-maximized,--ash-disable-system-sounds,--allow-failed-policy-fetch-for-test,--oobe-skip-postlogin,--disable-logging-redirect,--vmodule=*/chromeos/net/*=2\,*/chromeos/login/*=2\,chrome_browser_main_posix=2"
11:42:26 INFO | Discovered ephemeral port 59406
11:42:26 INFO | Browser target: /devtools/browser/ef42c16d-9175-476f-961e-3843cf976093
11:42:27 INFO | Invoking Oobe.skipToLoginForTesting
11:43:42 INFO | Closing browser (pid=16735) ...
11:43:42 INFO | (Re)starting the ui (logs the user out)
11:43:43 INFO | Browser is closed.
11:43:43 WARNI| The test failed with the following exception
Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 606, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/common_lib/test.py", line 812, in _call_test_function
    raise error.UnhandledTestFail(e)
UnhandledTestFail: Unhandled TimeoutException: Timed out while waiting 60s for py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60).
Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 806, in _call_test_function
    return func(*args, **dargs)
  File "/usr/local/autotest/common_lib/test.py", line 470, in execute
    dargs)
  File "/usr/local/autotest/common_lib/test.py", line 347, in _call_run_once_with_retry
    postprocess_profiled_run, args, dargs)
  File "/usr/local/autotest/common_lib/test.py", line 380, in _call_run_once
    self.run_once(*args, **dargs)
  File "/usr/local/autotest/tests/power_LoadTest/power_LoadTest.py", line 258, in run_once
    password=self._password)
  File "/usr/local/autotest/common_lib/cros/chrome.py", line 168, in __init__
    self._browser = browser_to_create.Create(finder_options)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/cros_browser_finder.py", line 48, in Create
    browser_backend, self._platform_backend, self._credentials_path)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/cros_browser_with_oobe.py", line 14, in __init__
    backend, platform_backend, credentials_path)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/browser/browser.py", line 59, in __init__
    self._browser_backend.Start()
  File "/usr/local/telemetry/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/cros_browser_backend.py", line 187, in Start
    self.oobe.NavigateGaiaLogin(self._username, self._password)
  File "/usr/local/telemetry/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/oobe.py", line 89, in NavigateGaiaLogin
    self._NavigateGaiaLogin(username, password, enterprise_enroll)
  File "/usr/local/telemetry/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/oobe.py", line 106, in _NavigateGaiaLogin
    py_utils.WaitFor(_GetGaiaFunction, 20)(self, username, password)
  File "/usr/local/telemetry/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/oobe.py", line 128, in _NavigateWebViewLogin
    py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60)
  File "/usr/local/telemetry/src/third_party/catapult/common/py_utils/py_utils/__init__.py", line 148, in WaitFor
    (timeout, GetConditionString()))
TimeoutException: Timed out while waiting 60s for py_utils.WaitFor(lambda: not self._GaiaWebviewContext(), 60).

Did this work before? N/A 

Chrome version: 64.0.3243.0  Channel: n/a
OS Version: 
Flash Version: