Correct links:
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac%20FYI%20Retina%20Release%20%28AMD%29/2419
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac%20Pro%20FYI%20Release%20%28AMD%29/845

[50/138] gpu_tests.webgl_conformance_integration_test.WebGLConformanceIntegrationTest.WebglConformance_conformance2_transform_feedback_too_small_buffers failed unexpectedly 0.9040s:
  
  Traceback (most recent call last):
    _RunGpuTest at content/test/gpu/gpu_tests/gpu_integration_test.py:132
      self.RunActualGpuTest(url, *args)
    RunActualGpuTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:188
      getattr(self, test_name)(test_path, *args[1:])
    _RunConformanceTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:202
      self._CheckTestCompletion()
    _CheckTestCompletion at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:198
      self.fail(self._WebGLTestMessages(self.tab))
    fail at .swarming_module/lib/python2.7/unittest/case.py:410
      raise self.failureException(msg)
  AssertionError: buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values
  buffer should match expected values
  FAIL buffer should match expected values


Most likely due to https://chromium-review.googlesource.com/c/chromium/src/+/1021795 

Oh, already covered by 832238, should be getting fixed

Yeah, sorry about that.