The browser_test OnDiskApp/NetworkContextConfigurationBrowserTest.PRE_CookiesEnabled/1 wasn't flaky before but fails reliably since: https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac10.11%20Tests/28606

Other test failures from 28607 to 28609 included more failing OnDiskApp/NetworkContextConfigurationBrowserTests which could be resolved with https://crrev.com/c/1179383.

This seems different, because it's now failing instead of timing out:
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac10.11%20Tests/28610
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac10.11%20Tests/28611


This test was never flaky but I haven't found the culprit yet:
https://test-results.appspot.com/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=OnDiskApp%2FNetworkContextConfigurationBrowserTest.PRE_CookiesEnabled%2F1


a) Timeout log:
[ RUN      ] OnDiskApp/NetworkContextConfigurationBrowserTest.PRE_CookiesEnabled/1
[3983:5123:0816/200119.286698:WARNING:notification_platform_bridge_mac.mm(510)] AlertNotificationService: XPC connection invalidated.
[3989:15363:0816/200119.645600:ERROR:binder_registry.h(100)] Failed to locate a binder for interface "network.mojom.NetworkServiceTest".
BrowserTestBase received signal: Terminated: 15. Backtrace:
0   browser_tests                       0x000000010b9d603c base::debug::StackTrace::StackTrace(unsigned long) + 28
1   browser_tests                       0x000000010bfaea05 content::(anonymous namespace)::DumpStackTraceSignalHandler(int) + 229
2   libsystem_platform.dylib            0x00007fff8c6b052a _sigtramp + 26
3   ???                                 0x00007fd9fdb3ae80 0x0 + 140574241042048
4   CoreFoundation                      0x00007fff90030124 __CFRunLoopServiceMachPort + 212
5   CoreFoundation                      0x00007fff9002f5ec __CFRunLoopRun + 1356
6   CoreFoundation                      0x00007fff9002ee38 CFRunLoopRunSpecific + 296
7   HIToolbox                           0x00007fff8faa0935 RunCurrentEventLoopInMode + 235
8   HIToolbox                           0x00007fff8faa076f ReceiveNextEventCommon + 432
9   HIToolbox                           0x00007fff8faa05af _BlockUntilNextEventMatchingListInModeWithFilter + 71
10  AppKit                              0x00007fff93306df6 _DPSNextEvent + 1067
11  AppKit                              0x00007fff93306226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
12  browser_tests                       0x000000010ba82c20 __71-[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:]_block_invoke + 64
13  browser_tests                       0x000000010b933a3a base::mac::CallWithEHFrame(void () block_pointer) + 10
14  browser_tests                       0x000000010ba82b54 -[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 164
15  AppKit                              0x00007fff932fad80 -[NSApplication run] + 682
16  browser_tests                       0x000000010b94333c base::MessagePumpNSApplication::DoRun(base::MessagePump::Delegate*) + 364
17  browser_tests                       0x000000010b941e7e base::MessagePumpCFRunLoopBase::Run(base::MessagePump::Delegate*) + 110
18  browser_tests                       0x000000010b966a55 base::RunLoop::Run() + 53
19  browser_tests                       0x000000010bfae888 content::BrowserTestBase::InitializeNetworkProcess() + 1352
20  browser_tests                       0x000000010bfadeb2 content::BrowserTestBase::ProxyRunTestOnMainThreadLoop() + 482
21  browser_tests                       0x000000010ba88dd7 ChromeBrowserMainParts::PreMainMessageLoopRunImpl() + 4375
22  browser_tests                       0x000000010ba87bbe ChromeBrowserMainParts::PreMainMessageLoopRun() + 62
23  browser_tests                       0x000000010a56a6a3 content::BrowserMainLoop::PreMainMessageLoopRun() + 67
24  browser_tests                       0x000000010a977947 content::StartupTaskRunner::RunAllTasksNow() + 39
25  browser_tests                       0x000000010a568dd8 content::BrowserMainLoop::CreateStartupTasks() + 712
26  browser_tests                       0x000000010a56cbc0 content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) + 96
27  browser_tests                       0x000000010a566ef4 content::BrowserMain(content::MainFunctionParams const&) + 180
28  browser_tests                       0x000000010b8b47c0 content::ContentMainRunnerImpl::Run(bool) + 592
29  browser_tests                       0x000000010d97d5e1 service_manager::Main(service_manager::MainParams const&) + 2849
30  browser_tests                       0x000000010b8b39c4 content::ContentMain(content::ContentMainParams const&) + 68
31  browser_tests                       0x000000010bfadae9 content::BrowserTestBase::SetUp() + 2697
32  browser_tests                       0x000000010ba0ba53 InProcessBrowserTest::SetUp() + 723
33  browser_tests                       0x00000001098e659d testing::Test::Run() + 109
34  browser_tests                       0x00000001098e7230 testing::TestInfo::Run() + 320
35  browser_tests                       0x00000001098e77a7 testing::TestCase::Run() + 279
36  browser_tests                       0x00000001098f2d97 testing::internal::UnitTestImpl::RunAllTests() + 871
37  browser_tests                       0x00000001098f2a0d testing::UnitTest::Run() + 109
38  browser_tests                       0x000000010ba260e6 base::TestSuite::Run() + 166
39  browser_tests                       0x000000010b912f25 ChromeTestSuiteRunner::RunTestSuite(int, char**) + 37
40  browser_tests                       0x000000010bfd0248 content::LaunchTests(content::TestLauncherDelegate*, unsigned long, int, char**) + 552
41  browser_tests                       0x000000010b9133fd LaunchChromeTests(unsigned long, content::TestLauncherDelegate*, int, char**) + 333
42  browser_tests                       0x000000010b912e9e main + 94
43  libdyld.dylib                       0x00007fff8bcb65ad start + 1
44  ???                                 0x000000000000000c 0x0 + 12
[300/301] OnDiskApp/NetworkContextConfigurationBrowserTest.PRE_CookiesEnabled/1 (TIMED OUT)


b) Failing log:
[ RUN      ] OnDiskApp/NetworkContextConfigurationBrowserTest.PRE_CookiesEnabled/1
[3975:5639:0817/010114.064519:WARNING:notification_platform_bridge_mac.mm(510)] AlertNotificationService: XPC connection invalidated.
BrowserTestBase received signal: Terminated: 15. Backtrace:
0   browser_tests                       0x0000000111b6741c base::debug::StackTrace::StackTrace(unsigned long) + 28
1   browser_tests                       0x000000011213fc75 content::(anonymous namespace)::DumpStackTraceSignalHandler(int) + 229
2   libsystem_platform.dylib            0x00007fff99f8f52a _sigtramp + 26
3   ???                                 0x00007f83b042f940 0x0 + 140203574622528
4   CoreFoundation                      0x00007fff90b25124 __CFRunLoopServiceMachPort + 212
5   CoreFoundation                      0x00007fff90b245ec __CFRunLoopRun + 1356
6   CoreFoundation                      0x00007fff90b23e38 CFRunLoopRunSpecific + 296
7   HIToolbox                           0x00007fff89b6a935 RunCurrentEventLoopInMode + 235
8   HIToolbox                           0x00007fff89b6a76f ReceiveNextEventCommon + 432
9   HIToolbox                           0x00007fff89b6a5af _BlockUntilNextEventMatchingListInModeWithFilter + 71
10  AppKit                              0x00007fff93540df6 _DPSNextEvent + 1067
11  AppKit                              0x00007fff93540226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
12  browser_tests                       0x0000000111c14000 __71-[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:]_block_invoke + 64
13  browser_tests                       0x0000000111ac4e1a base::mac::CallWithEHFrame(void () block_pointer) + 10
14  browser_tests                       0x0000000111c13f34 -[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 164
15  AppKit                              0x00007fff93534d80 -[NSApplication run] + 682
16  browser_tests                       0x0000000111ad471c base::MessagePumpNSApplication::DoRun(base::MessagePump::Delegate*) + 364
17  browser_tests                       0x0000000111ad325e base::MessagePumpCFRunLoopBase::Run(base::MessagePump::Delegate*) + 110
18  browser_tests                       0x0000000111af7e35 base::RunLoop::Run() + 53
19  browser_tests                       0x000000010e7abe10 (anonymous namespace)::NetworkContextConfigurationBrowserTest_PRE_CookiesEnabled_Test::RunTestOnMainThread() + 1056
20  browser_tests                       0x000000011213f2ab content::BrowserTestBase::ProxyRunTestOnMainThreadLoop() + 491
21  browser_tests                       0x0000000111c1a1b7 ChromeBrowserMainParts::PreMainMessageLoopRunImpl() + 4375
22  browser_tests                       0x0000000111c18f9e ChromeBrowserMainParts::PreMainMessageLoopRun() + 62
23  browser_tests                       0x00000001106fbdd3 content::BrowserMainLoop::PreMainMessageLoopRun() + 67
24  browser_tests                       0x0000000110b08b77 content::StartupTaskRunner::RunAllTasksNow() + 39
25  browser_tests                       0x00000001106fa508 content::BrowserMainLoop::CreateStartupTasks() + 712
26  browser_tests                       0x00000001106fe2f0 content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) + 96
27  browser_tests                       0x00000001106f8624 content::BrowserMain(content::MainFunctionParams const&) + 180
28  browser_tests                       0x0000000111a45ba0 content::ContentMainRunnerImpl::Run(bool) + 592
29  browser_tests                       0x0000000113b0e281 service_manager::Main(service_manager::MainParams const&) + 2849
30  browser_tests                       0x0000000111a44da4 content::ContentMain(content::ContentMainParams const&) + 68
31  browser_tests                       0x000000011213eed9 content::BrowserTestBase::SetUp() + 2697
32  browser_tests                       0x0000000111b9ce33 InProcessBrowserTest::SetUp() + 723
33  browser_tests                       0x000000010fa775bd testing::Test::Run() + 109
34  browser_tests                       0x000000010fa78250 testing::TestInfo::Run() + 320
35  browser_tests                       0x000000010fa787c7 testing::TestCase::Run() + 279
36  browser_tests                       0x000000010fa83db7 testing::internal::UnitTestImpl::RunAllTests() + 871
37  browser_tests                       0x000000010fa83a2d testing::UnitTest::Run() + 109
38  browser_tests                       0x0000000111bb74c6 base::TestSuite::Run() + 166
39  browser_tests                       0x0000000111aa4305 ChromeTestSuiteRunner::RunTestSuite(int, char**) + 37
40  browser_tests                       0x0000000112161448 content::LaunchTests(content::TestLauncherDelegate*, unsigned long, int, char**) + 552
41  browser_tests                       0x0000000111aa47dd LaunchChromeTests(unsigned long, content::TestLauncherDelegate*, int, char**) + 333
42  browser_tests                       0x0000000111aa427e main + 94
43  libdyld.dylib                       0x00007fff87d7d5ad start + 1
44  ???                                 0x000000000000000c 0x0 + 12