https://uberchromegw.corp.google.com/i/chromium.chromiumos/builders/linux-chromeos-dbg/builds/4047
https://uberchromegw.corp.google.com/i/chromium.chromiumos/builders/linux-chromeos-dbg/builds/4040
https://uberchromegw.corp.google.com/i/chromium.chromiumos/builders/linux-chromeos-dbg/builds/4038

Example failure:

[25624:25692:0202/111929.870464:ERROR:test_database_manager.cc(64)] Not implemented reached in virtual bool safe_browsing::TestSafeBrowsingDatabaseManager::CheckResourceUrl(const GURL &, safe_browsing::SafeBrowsingDatabaseManager::Client *)
../../chrome/browser/prerender/prerender_browsertest.cc:1054: Failure
Expected equality of these values:
  expected_number_of_loads
    Which is: 0
  prerenders[0]->number_of_loads()
    Which is: 1
../../chrome/browser/prerender/prerender_browsertest.cc:1056: Failure
Expected equality of these values:
  expected_number_of_loads
    Which is: 0
  GetPrerenderLoadEventCountForLinkNumber(0)
    Which is: 1
[25624:25692:0202/111930.303456:ERROR:test_database_manager.cc(64)] Not implemented reached in virtual bool safe_browsing::TestSafeBrowsingDatabaseManager::CheckResourceUrl(const GURL &, safe_browsing::SafeBrowsingDatabaseManager::Client *)
[25624:25624:0202/111931.463356:INFO:chrome_cryptauth_service.cc(239)] Refresh token not yet available; waiting before starting CryptAuth managers.
[25624:25624:0202/111931.618386:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[25624:25624:0202/111931.618449:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[  FAILED  ] PrerenderBrowserTest.FirstContentfulPaintTimingTwoPages, where TypeParam =  and GetParam() =  (6178 ms)
[ RUN      ] PrerenderBrowserTest.FirstContentfulPaintTimingTwoPages