This has been failing for quite a while, see builder page: 
https://uberchromegw.corp.google.com/i/chromium.perf/builders/Win%2010%20High-DPI%20Perf%20%281%29


Link to failing step log:

https://uberchromegw.corp.google.com/i/chromium.perf/builders/Win%2010%20High-DPI%20Perf%20%281%29/builds/402/steps/system_health.common_desktop/logs/stdio


INFO:root:Issuing command to ts_proxy_server: set outkbps 0
INFO:root:PageCacheTemperature: any
INFO:root:*************** BROWSER STANDARD OUTPUT ***************
INFO:root:
INFO:root:*********** END OF BROWSER STANDARD OUTPUT ************
INFO:root:********************* BROWSER LOG *********************
INFO:root:No log file
INFO:root:***************** END OF BROWSER LOG ******************
C:\b\c\b\Win_10_High_DPI_Perf__1_\src\third_party\catapult\telemetry\telemetry\internal\image_processing\_bitmap.py:152: UserWarning: Using pure python png decoder, which could be very slow. To speed up, consider installing numpy & cv2 (OpenCV).
  'Using pure python png decoder, which could be very slow. To speed up, '
Traceback (most recent call last):
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\third_party\catapult\telemetry\telemetry\internal\story_runner.py", line 86, in _RunStoryAndProcessErrorIfNeeded
    state.RunStory(results)
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\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 "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\third_party\catapult\telemetry\telemetry\page\shared_page_state.py", line 310, in RunStory
    self._current_page.Run(self)
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\third_party\catapult\telemetry\telemetry\page\__init__.py", line 109, in Run
    self.RunPageInteractions(action_runner)
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\tools\perf\page_sets\system_health\system_health_story.py", line 112, in RunPageInteractions
    self._DidLoadDocument(action_runner)
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\tools\perf\page_sets\system_health\browsing_stories.py", line 70, in _DidLoadDocument
    self._ReadNewsItem(action_runner)
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\tools\perf\page_sets\system_health\browsing_stories.py", line 75, in _ReadNewsItem
    action_runner.tab.WaitForDocumentReadyStateToBeComplete()
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\src\third_party\catapult\telemetry\telemetry\internal\browser\web_contents.py", line 70, in WaitForDocumentReadyStateToBeComplete
    'document.readyState == "complete"', timeout)
  File "C:\b\c\b\Win_10_High_DPI_Perf__1_\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 90s for IsJavaScriptExpressionTrue.
Console output:



If the test is disabled, please downgrade to Pri-2.