It appears to fail with this signature in about 20% of builds. Example failures: https://build.chromium.org/p/chromium.gpu.fyi/builders/Win10%20Release%20%28Intel%20HD%20530%29/builds/885
https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20Release%20%28AMD%20R7%20240%29/builds/973

The failure is flaky per run, either all tests fail with the same crash or all pass.  This seems to affect most of the Windows bots but a couple appear to be immune (https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20Release%20%28AMD%29).

Looks like this started as far back as June 12th.

Crash stack:
[1184:4772:0613/012832.159:17372312:ERROR:icu_util.cc(173)] Invalid file descriptor to ICU data received.
[1184:4772:0613/012832.160:17372312:FATAL:icu_util.cc(292)] Check failed: result. 
Backtrace:
	base::debug::StackTrace::StackTrace [0x0015E757+55]
	base::debug::StackTrace::StackTrace [0x0015E69A+10]
	base::i18n::InitializeICU [0x003BB552+354]
	base::TestSuite::Initialize [0x001A6FAE+318]
	base::TestSuite::Run [0x001A72D0+25]
	base::internal::Invoker<base::internal::BindState<int (__cdecl*)(base::TestSuite *),base::internal::UnretainedWrapper<base::TestSuite> >,int __cdecl(void)>::Run [0x0013F53F+63]
	base::internal::Invoker<base::internal::BindState<int (__cdecl*)(base::TestSuite *),base::internal::UnretainedWrapper<base::TestSuite> >,int __cdecl(void)>::Run [0x0013F50E+14]
	base::UnitTestLauncherDelegate::GetTests [0x001A557C+796]
	base::LaunchUnitTestsWithOptions [0x001A55D7+73]
	main [0x0013F5E0+141]
	__scrt_common_main_seh [0x0047088B+249] (f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253)
	BaseThreadInitThunk [0x76A838F4+36]
	RtlUnicodeStringToInteger [0x77435DE3+595]
	RtlUnicodeStringToInteger [0x77435DAE+542]

Looking for possible regressing CLs now..