Flakiness Dashboard: https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=%5EServiceProcessControlBrowserTest.LaunchAnd

Example Log Output:

[ RUN      ] ServiceProcessControlBrowserTest.LaunchAndReconnect
[8490:14599:0831/050956.515852:WARNING:notification_platform_bridge_mac.mm(510)] AlertNotificationService: XPC connection invalidated.
[8490:775:0831/050956.634039:ERROR:delegated_frame_host.cc(173)] Not implemented reached in void content::DelegatedFrameHost::SetNeedsBeginFrames(bool)
BrowserTestBase received signal: Terminated: 15. Backtrace:
0   browser_tests                       0x00000001058f47ec base::debug::StackTrace::StackTrace(unsigned long) + 28
1   browser_tests                       0x0000000105edc965 content::(anonymous namespace)::DumpStackTraceSignalHandler(int) + 229
2   libsystem_platform.dylib            0x00007fff80ea852a _sigtramp + 26
3   browser_tests                       0x0000000105863907 base::circular_deque<base::PendingTask>::pop_front() + 343
4   CoreFoundation                      0x00007fff84526124 __CFRunLoopServiceMachPort + 212
5   CoreFoundation                      0x00007fff845255ec __CFRunLoopRun + 1356
6   CoreFoundation                      0x00007fff84524e38 CFRunLoopRunSpecific + 296
7   HIToolbox                           0x00007fff89a5d935 RunCurrentEventLoopInMode + 235
8   HIToolbox                           0x00007fff89a5d76f ReceiveNextEventCommon + 432
9   HIToolbox                           0x00007fff89a5d5af _BlockUntilNextEventMatchingListInModeWithFilter + 71
10  AppKit                              0x00007fff92f65df6 _DPSNextEvent + 1067
11  AppKit                              0x00007fff92f65226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
12  browser_tests                       0x000000010599e340 __71-[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:]_block_invoke + 64
13  browser_tests                       0x000000010585244a base::mac::CallWithEHFrame(void () block_pointer) + 10
14  browser_tests                       0x000000010599e274 -[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 164
15  AppKit                              0x00007fff92f59d80 -[NSApplication run] + 682
16  browser_tests                       0x000000010586179c base::MessagePumpNSApplication::DoRun(base::MessagePump::Delegate*) + 364
17  browser_tests                       0x000000010586030e base::MessagePumpCFRunLoopBase::Run(base::MessagePump::Delegate*) + 110
18  browser_tests                       0x0000000105884ee5 base::RunLoop::Run() + 53
19  browser_tests                       0x00000001035454a2 ServiceProcessControlBrowserTest_LaunchAndReconnect_Test::RunTestOnMainThread() + 82
20  browser_tests                       0x0000000105edbe1b content::BrowserTestBase::ProxyRunTestOnMainThreadLoop() + 491
21  browser_tests                       0x00000001059a4467 ChromeBrowserMainParts::PreMainMessageLoopRunImpl() + 4375
22  browser_tests                       0x00000001059a324e ChromeBrowserMainParts::PreMainMessageLoopRun() + 62
23  browser_tests                       0x000000010446e793 content::BrowserMainLoop::PreMainMessageLoopRun() + 67
24  browser_tests                       0x00000001048814d7 content::StartupTaskRunner::RunAllTasksNow() + 39
25  browser_tests                       0x000000010446cee8 content::BrowserMainLoop::CreateStartupTasks() + 712
26  browser_tests                       0x0000000104470cb0 content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) + 96
27  browser_tests                       0x000000010446b004 content::BrowserMain(content::MainFunctionParams const&) + 180
28  browser_tests                       0x00000001057d3ea2 content::ContentMainRunnerImpl::Run(bool) + 610
29  browser_tests                       0x00000001078abe01 service_manager::Main(service_manager::MainParams const&) + 2849
30  browser_tests                       0x00000001057d3094 content::ContentMain(content::ContentMainParams const&) + 68
31  browser_tests                       0x0000000105edba49 content::BrowserTestBase::SetUp() + 2697
32  browser_tests                       0x000000010592cbd3 InProcessBrowserTest::SetUp() + 723
33  browser_tests                       0x0000000103547d1e ServiceProcessControlBrowserTest::SetUp() + 14
34  browser_tests                       0x00000001037c502d testing::Test::Run() + 109
35  browser_tests                       0x00000001037c5cb0 testing::TestInfo::Run() + 304
36  browser_tests                       0x00000001037c6227 testing::TestCase::Run() + 279
37  browser_tests                       0x00000001037d21b7 testing::internal::UnitTestImpl::RunAllTests() + 871
38  browser_tests                       0x00000001037d1e2d testing::UnitTest::Run() + 109
39  browser_tests                       0x0000000105947106 base::TestSuite::Run() + 166
40  browser_tests                       0x0000000105833ead ChromeTestSuiteRunner::RunTestSuite(int, char**) + 45
41  browser_tests                       0x0000000105efe838 content::LaunchTests(content::TestLauncherDelegate*, unsigned long, int, char**) + 552
42  browser_tests                       0x000000010583442a LaunchChromeTests(unsigned long, content::TestLauncherDelegate*, int, char**) + 490
43  browser_tests                       0x0000000105833e1e main + 94
44  libdyld.dylib                       0x00007fff838de5ad start + 1


Suspecting r587921 after manual bisection.

Reverted r587921 as r588012. Adding the original CL author. thestig@, please investigate. 

 Issue 885229  has been merged into this issue.

jdoerrie reverted. I'll be sure to test my CL manually if I try to reland.