Fails then passes:

I   40.564s run_tests_on_device(06b6ef690062085b)  [ RUN      ] HeapTest.PersistentHeapCollectionTypes
I   40.565s run_tests_on_device(06b6ef690062085b)  ../../third_party/WebKit/Source/platform/heap/HeapTest.cpp:4105: Failure
I   40.565s run_tests_on_device(06b6ef690062085b)  Expected equality of these values:
I   40.565s run_tests_on_device(06b6ef690062085b)    1
I   40.565s run_tests_on_device(06b6ef690062085b)    IntWrapper::destructor_calls_
I   40.565s run_tests_on_device(06b6ef690062085b)      Which is: 1999
I   40.565s run_tests_on_device(06b6ef690062085b)  ../../third_party/WebKit/Source/platform/heap/HeapTest.cpp:4139: Failure
I   40.566s run_tests_on_device(06b6ef690062085b)  Expected equality of these values:
I   40.566s run_tests_on_device(06b6ef690062085b)    11
I   40.566s run_tests_on_device(06b6ef690062085b)    IntWrapper::destructor_calls_
I   40.566s run_tests_on_device(06b6ef690062085b)      Which is: 2009
I   40.566s run_tests_on_device(06b6ef690062085b)  [  FAILED  ] HeapTest.PersistentHeapCollectionTypes (47 ms)


Logs:
https://logs.chromium.org/v/?s=chromium%2Fbb%2Ftryserver.chromium.android%2Fandroid_blink_rel%2F5328%2F%2B%2Frecipes%2Fsteps%2Fblink_heap_unittests__with_patch_%2F0%2Fstdout

Flakiness Dashboard:
https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=blink_heap_unittests&tests=HeapTest.PersistentHeapCollectionTypes