v8.runtimestats.browsing_desktop failing on 10 builders

https://uberchromegw.corp.google.com/i/chromium.perf/builders/Linux%20Perf/builds/773

Regression ranges:
chromium:
460547 - 479011
https://chromium.googlesource.com/chromium/src/+log/517d0115d3c435383f79a0b730b6514a6cc97f44%5E..dad51faf7fb29c964bf46baee87bf5193a9e22f1?pretty=fuller

Builders failed on: 
- Linux Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Linux%20Perf
- Mac 10.12 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%2010.12%20Perf
- Mac Air 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Air%2010.11%20Perf
- Mac Pro 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Pro%2010.11%20Perf
- Mac Retina Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Retina%20Perf
- Win 10 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Win%2010%20Perf
- Win 7 Intel GPU Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Win%207%20Intel%20GPU%20Perf
- Win 7 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Win%207%20Perf
- Win 7 x64 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Win%207%20x64%20Perf
- Win 8 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf


Exception raised when cleaning story run: 

Traceback (most recent call last):
  _RunStoryAndProcessErrorIfNeeded at /b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/story_runner.py:124
    test.DidRunStory(state.platform, results)
  DidRunStory at /b/s/w/ir/third_party/catapult/telemetry/telemetry/web_perf/timeline_based_measurement.py:309
    trace_result = platform.tracing_controller.StopTracing()
  StopTracing at /b/s/w/ir/third_party/catapult/telemetry/telemetry/core/tracing_controller.py:47
    return self._tracing_controller_backend.StopTracing()
  StopTracing at /b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py:140
    '\n'.join(raised_exception_messages))
TracingException: Exceptions raised when trying to stop tracing:
Traceback (most recent call last):
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py", line 118, in StopTracing
    agent.StopAgentTracing()
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py", line 231, in StopAgentTracing
    '\n'.join(raised_exception_messages))
ChromeTracingStoppedError: Exceptions raised when trying to stop Chrome devtool tracing:
Error when trying to stop Chrome tracing on devtools at port 54773:
Traceback (most recent call last):
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py", line 214, in StopAgentTracing
    client.StopChromeTracing()
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/devtools_client_backend.py", line 371, in StopChromeTracing
    backend_id=backend.id)
  File "/b/s/w/ir/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/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py", line 243, in EvaluateJavaScript
    return self._EvaluateJavaScript(expression, context_id, timeout)
  File "/b/s/w/ir/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/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py", line 40, in inner
    inspector_backend._ConvertExceptionFromInspectorWebsocket(e)
  File "/b/s/w/ir/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/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py", line 37, in inner
    return func(inspector_backend, *args, **kwargs)
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py", line 507, in _EvaluateJavaScript
    return self._runtime.Evaluate(expression, context_id, timeout)
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_runtime.py", line 45, in Evaluate
    res = self._inspector_websocket.SyncRequest(request, timeout)
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py", line 110, in SyncRequest
    res = self._Receive(timeout)
  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py", line 149, in _Receive
    data = self._socket.recv()
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_core.py", line 293, in recv
    opcode, data = self.recv_data()
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_core.py", line 310, in recv_data
    opcode, frame = self.recv_data_frame(control_frame)
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_core.py", line 323, in recv_data_frame
    frame = self.recv_frame()
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_core.py", line 357, in recv_frame
    return self.frame_buffer.recv_frame()
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_abnf.py", line 336, in recv_frame
    self.recv_header()
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_abnf.py", line 286, in recv_header
    header = self.recv_strict(2)
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_abnf.py", line 371, in recv_strict
    bytes_ = self.recv(min(16384, shortage))
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_core.py", line 427, in _recv
    return recv(self.sock, bufsize)
  File "/b/s/w/ir/third_party/catapult/telemetry/third_party/websocket-client/websocket/_socket.py", line 83, in recv
    raise WebSocketTimeoutException(message)
TimeoutException: 
********************************************************************************
(/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:476 _ConvertExceptionFromInspectorWebsocket) The app is probably crashed:

Found Minidump: False
Stack Trace:
********************************************************************************
	No crash dump found.
********************************************************************************
Standard output:
********************************************************************************
	[10424:10424:0613/192107.403711:ERROR:sandbox_linux.cc(344)] InitializeSandbox() called with multiple threads in process gpu-process.
	[10382:10400:0613/192109.652920:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for www.gstatic.com failed err=-8172
	[10382:10399:0613/192117.707875:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for ssl.gstatic.com failed err=-8172
********************************************************************************
System log:
(Not implemented)
********************************************************************************
(/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:481 _ConvertExceptionFromInspectorWebsocket) Original exception:
timed out
********************************************************************************
(/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:502 _AddDebuggingInformation) Received a socket error in the browser connection and the tab still exists. The operation probably timed out.
********************************************************************************
(/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:503 _AddDebuggingInformation) Debugger url: ws://127.0.0.1:54773/devtools/page/54879f15-a532-4f22-8b4c-4da0de1dc952

Locals:
  agent                     : <telemetry.internal.platform.tracing_controller_backend.TracingControllerBackend object at 0x7faa3e635b90>
  builder                   : <tracing.trace_data.trace_data.TraceDataBuilder object at 0x7faa27a8add0>
  raised_exception_messages : ['Traceback (most recent call last):\n  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py", line 118, in StopTracing\n    agent.StopAgentTracing()\n  File "/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py", line 231, in StopAgentTracing\n    \'\\n\'.join(raised_exception_messages))\nChromeTracingStoppedError: Exceptions raised when trying to stop Chrome devtool tracing:\nError when trying to s ... y/internal/backends/chrome_inspector/inspector_backend.py:502 _AddDebuggingInformation) Received a socket error in the browser connection and the tab still exists. The operation probably timed out.\n********************************************************************************\n(/b/s/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:503 _AddDebuggingInformation) Debugger url: ws://127.0.0.1:54773/devtools/page/54879f15-a532-4f22-8b4c-4da0de1dc952\n\n'] (truncated)

[  FAILED  ] browse:news:cnn@{'case': 'browse', 'group': 'news'} (186979 ms)


[  PASSED  ] 7 tests.
[  FAILED  ] 12 tests, listed below:
[  FAILED  ]  browse:news:cnn@{'case': 'browse', 'group': 'news'}
[  FAILED  ]  browse:social:facebook_infinite_scroll@{'case': 'browse', 'group': 'social'}
[  FAILED  ]  browse:news:flipboard@{'case': 'browse', 'group': 'news'}
[  FAILED  ]  browse:search:google@{'case': 'browse', 'group': 'search'}
[  FAILED  ]  browse:search:google_india@{'case': 'browse', 'group': 'search'}
[  FAILED  ]  browse:news:hackernews@{'case': 'browse', 'group': 'news'}
[  FAILED  ]  browse:media:imgur@{'case': 'browse', 'group': 'media'}
[  FAILED  ]  browse:news:nytimes@{'case': 'browse', 'group': 'news'}
[  FAILED  ]  browse:media:pinterest@{'case': 'browse', 'group': 'media'}
[  FAILED  ]  browse:news:reddit@{'case': 'browse', 'group': 'news'}
[  FAILED  ]  browse:social:twitter@{'case': 'browse', 'group': 'social'}
[  FAILED  ]  browse:media:youtube@{'case': 'browse', 'group': 'media'}


	[13947:13947:0613/200158.268887:ERROR:sandbox_linux.cc(344)] InitializeSandbox() called with multiple threads in process gpu-process.
	[13905:13922:0613/200159.332073:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for www.gstatic.com failed err=-8172
	[13905:13923:0613/200159.423790:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for www.youtube.com failed err=-8172
	[13905:13922:0613/200159.960897:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for s.ytimg.com failed err=-8172
	[13905:13923:0613/200159.974351:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for fonts.gstatic.com failed err=-8172
	[13905:13922:0613/200200.086990:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for www.gstatic.com failed err=-8172
	[13905:13923:0613/200208.252309:ERROR:cert_verify_proc_nss.cc(912)] CERT_PKIXVerifyCert for ssl.gstatic.com failed err=-8172