Initial effort shows repeated failures. Looks like may need to test non-desktop with Android, but even desktop fails with an apparent dev tools timing error.

smoothness.tough_pinch_zoom_cases smoothness.desktop_tough_pinch_zoom_cases smoothness.gpu_rasterization.tough_pinch_zoom_cases

desktop sample error:

Exception raised when cleaning story run: 

Traceback (most recent call last):
  _RunStoryAndProcessErrorIfNeeded at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py:132
    test.DidRunPage(state.platform)
  traced_function at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:75
    return func(*args, **kwargs)
  DidRunPage at /usr/local/google/home/wkorman/workspace/chromium/src/tools/perf/measurements/smoothness.py:67
    self._tbm.DidRunStory(platform, self._results)
  DidRunStory at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/telemetry/telemetry/web_perf/timeline_based_measurement.py:310
    trace_result = platform.tracing_controller.StopTracing()
  StopTracing at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/telemetry/telemetry/core/tracing_controller.py:47
    return self._tracing_controller_backend.StopTracing()
  StopTracing at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py:109
    self._IssueClockSyncMarker()
  _IssueClockSyncMarker at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py:213
    self._RecordIssuerClockSyncMarker)
  RecordClockSyncMarker at /usr/local/google/home/wkorman/workspace/chromium/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py:178
    raise ChromeClockSyncError('Cannot issue clock sync. No devtools clients')
ChromeClockSyncError: Cannot issue clock sync. No devtools clients

Locals:
  devtools_clients                             : []
  record_controller_clock_sync_marker_callback : <bound method TracingControllerBackend._RecordIssuerClockSyncMarker of <telemetry.internal.platform.tracing_controller_backend.TracingControllerBackend object at 0x7fd7abe457d0>>
  sync_id                                      : 'fa338818-560e-4304-9306-b180e7355abd'

[  FAILED  ] http://booking.com (9126 ms)