This test has failed for a few weeks.

https://uberchromegw.corp.google.com/i/chromium.perf/builders/Android%20Nexus6%20WebView%20Perf%20%281%29?numbuilds=200

Traceback (most recent call last):
  File "/b/rr/tmpJ7oP3T/w/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 86, in _RunStoryAndProcessErrorIfNeeded
    state.RunStory(results)
  File "/b/rr/tmpJ7oP3T/w/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 75, in traced_function
    return func(*args, **kwargs)
  File "/b/rr/tmpJ7oP3T/w/src/third_party/catapult/telemetry/telemetry/page/shared_page_state.py", line 310, in RunStory
    self._current_page.Run(self)
  File "/b/rr/tmpJ7oP3T/w/src/third_party/catapult/telemetry/telemetry/page/__init__.py", line 109, in Run
    self.RunPageInteractions(action_runner)
  File "/b/rr/tmpJ7oP3T/w/src/tools/perf/page_sets/maps.py", line 33, in RunPageInteractions
    'window.testMetrics != undefined', 120)
  File "/b/rr/tmpJ7oP3T/w/src/third_party/catapult/telemetry/telemetry/internal/actions/action_runner.py", line 220, in WaitForJavaScriptCondition
    self._tab.WaitForJavaScriptExpression(condition, timeout_in_seconds)
  File "/b/rr/tmpJ7oP3T/w/src/third_party/catapult/telemetry/telemetry/internal/browser/web_contents.py", line 136, in WaitForJavaScriptExpression
    e.message + '\n' + debug_message)
TimeoutException: Timed out while waiting 120s for IsJavaScriptExpressionTrue.