All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=701951

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvYW5kcm9pZC1uZXh1czUvc21vb3RobmVzcy5zeW5jX3Njcm9sbC5rZXlfbW9iaWxlX3NpdGVzX3Ntb290aC9tZWFuX2lucHV0X2V2ZW50X2xhdGVuY3kvTGlua2VkSW4MCxINU3RvcHBhZ2VBbGVydBjB4BsM,agxzfmNocm9tZXBlcmZyjQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Il9DaHJvbWl1bVBlcmYvYW5kcm9pZC1uZXh1czUvc21vb3RobmVzcy5zeW5jX3Njcm9sbC5rZXlfbW9iaWxlX3NpdGVzX3Ntb290aC9mcmFtZV90aW1lcy9MaW5rZWRJbgwLEg1TdG9wcGFnZUFsZXJ0GMHgGww,agxzfmNocm9tZXBlcmZypQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IndDaHJvbWl1bVBlcmYvYW5kcm9pZC1uZXh1czUvc21vb3RobmVzcy5zeW5jX3Njcm9sbC5rZXlfbW9iaWxlX3NpdGVzX3Ntb290aC9maXJzdF9nZXN0dXJlX3Njcm9sbF91cGRhdGVfbGF0ZW5jeS9MaW5rZWRJbgwLEg1TdG9wcGFnZUFsZXJ0GMHgGww


Bot(s) for this bug's original alert(s):

android-nexus5

 Issue 701950  has been merged into this issue.

This is a pretty consistent failure, across multiple devices, so it probably is a code change.

I'll try a return code bisect.

Looks like LinkedIn is timed out:

Traceback (most recent call last):
  File "/b/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 88, in _RunStoryAndProcessErrorIfNeeded
    state.RunStory(results)
  File "/b/c/b/Android_Nexus5_Perf__3_/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 "/b/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/page/shared_page_state.py", line 299, in RunStory
    self._current_page.Run(self)
  File "/b/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/page/__init__.py", line 108, in Run
    shared_state.page_test.RunNavigateSteps(self, current_tab)
  File "/b/c/b/Android_Nexus5_Perf__3_/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/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/page/legacy_page_test.py", line 195, in RunNavigateSteps
    page.RunNavigateSteps(action_runner)
  File "/b/c/b/Android_Nexus5_Perf__3_/src/tools/perf/page_sets/key_mobile_sites_smooth.py", line 50, in RunNavigateSteps
    super(LinkedInSmoothPage, self).RunNavigateSteps(action_runner)
  File "/b/c/b/Android_Nexus5_Perf__3_/src/tools/perf/page_sets/key_mobile_sites_pages.py", line 116, in RunNavigateSteps
    'document.getElementById("profile-view-scroller") !== null')
  File "/b/c/b/Android_Nexus5_Perf__3_/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/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/internal/actions/action_runner.py", line 252, in WaitForJavaScriptCondition
    return self._tab.WaitForJavaScriptCondition(*args, **kwargs)
  File "/b/c/b/Android_Nexus5_Perf__3_/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/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/internal/browser/web_contents.py", line 191, in WaitForJavaScriptCondition
    return self._inspector_backend.WaitForJavaScriptCondition(*args, **kwargs)
  File "/b/c/b/Android_Nexus5_Perf__3_/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/c/b/Android_Nexus5_Perf__3_/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py", line 294, in WaitForJavaScriptCondition
    e.message + '\n' + debug_message)
TimeoutException: Timed out while waiting 60s for IsJavaScriptExpressionTrue.

Bisect started here:
https://chromeperf.appspot.com/buildbucket_job_status/8984962893948144816