Example builds:

https://ci.chromium.org/buildbot/chromium.clang/ToTWin64%28dbg%29/284
https://ci.chromium.org/buildbot/chromium.clang/ToTWin%28dbg%29/322
https://ci.chromium.org/buildbot/chromium.clang/CrWinAsan/212

The ASan one is interesting because it suggests there's a stack buffer overflow occurring, which might explain the errors on the other bots too.


[ RUN      ] HistoryQuickProviderTest.DontTrimHttpSchemeIfInputHasScheme
GMOCK WARNING:
Uninteresting mock function call - returning default value.
    Function call: GetRequestContext()
          Returns: NULL
NOTE: You can safely ignore the above warning unless this call should not happen.  Do not suppress it by blindly adding an EXPECT_CALL() if you don't mean to enforce the call.  See https://github.com/google/googletest/blob/master/googlemock/docs/CookBook.md#knowing-when-to-expect for details.
=================================================================
==3240==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x003de79e at pc 0x12e4fe5a bp 0x003de1dc sp 0x003de1d0
READ of size 2 at 0x003de79e thread T0
==3240==*** WARNING: Failed to initialize DbgHelp!              ***
==3240==*** Most likely this means that the app is already      ***
==3240==*** using DbgHelp, possibly with incompatible flags.    ***
==3240==*** Due to technical reasons, symbolization might crash ***
==3240==*** or produce wrong results.                           ***
    #0 0x12e4fe59 in ScoredHistoryMatch::ScoredHistoryMatch C:\b\c\b\CrWinAsan\src\components\omnibox\browser\scored_history_match.cc:211
    #1 0x3171355 in BuildScoredHistoryMatch+0x345 (e:\b\s\w\ir\out\Release\components_unittests.exe+0x2241355)
    #2 0x3172ac3 in HistoryQuickProviderTest_DontTrimHttpSchemeIfInputHasScheme_Test::TestBody C:\b\c\b\CrWinAsan\src\components\omnibox\browser\history_quick_provider_unittest.cc:779
    #3 0x60aedce in testing::internal::HandleExceptionsInMethodIfSupported<testing::Test,void> C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:2457
    #4 0x60ae9a7 in testing::Test::Run C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:2473
    #5 0x60b0b49 in testing::TestInfo::Run C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:2655
    #6 0x60b1c35 in testing::TestCase::Run C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:2773
    #7 0x60c270e in testing::internal::UnitTestImpl::RunAllTests C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:4673
    #8 0x60c1e7e in testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl,bool> C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:2457
    #9 0x60c1b76 in testing::UnitTest::Run C:\b\c\b\CrWinAsan\src\third_party\googletest\src\googletest\src\gtest.cc:4281
    #10 0xc17395d in base::TestSuite::Run C:\b\c\b\CrWinAsan\src\base\test\test_suite.cc:267
    #11 0xc1660ba in base::`anonymous namespace'::LaunchUnitTestsInternal C:\b\c\b\CrWinAsan\src\base\test\launcher\unit_test_launcher.cc:218
    #12 0xc165d16 in base::LaunchUnitTests C:\b\c\b\CrWinAsan\src\base\test\launcher\unit_test_launcher.cc:558
    #13 0x4ac4f29 in main C:\b\c\b\CrWinAsan\src\components\test\run_all_unittests.cc:20
    #14 0x1530ea09 in __scrt_common_main_seh f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283
    #15 0x75423389 in BaseThreadInitThunk+0x11 (C:\Windows\syswow64\kernel32.dll+0x7dd73389)
    #16 0x76ee9901 in RtlInitializeExceptionChain+0x62 (C:\Windows\SysWOW64\ntdll.dll+0x7dea9901)
    #17 0x76ee98d4 in RtlInitializeExceptionChain+0x35 (C:\Windows\SysWOW64\ntdll.dll+0x7dea98d4)
Address 0x003de79e is located in stack of thread T0 at offset 222 in frame
    #0 0x317101f in BuildScoredHistoryMatch C:\b\c\b\CrWinAsan\src\components\omnibox\browser\history_quick_provider_unittest.cc:751
  This frame has 9 object(s):
    [16, 40) 'ref.tmp' (line 752)
    [80, 92) 'ref.tmp2' (line 752)
    [112, 124) 'ref.tmp7' (line 752)
    [144, 145) 'ref.tmp8' (line 752)
    [160, 184) 'ref.tmp10' (line 752)
    [224, 248) 'ref.tmp14' (line 752) <== Memory access at offset 222 underflows this variable
    [288, 300) 'ref.tmp19' (line 752)
    [320, 488) 'ref.tmp21' (line 752)
    [560, 664) 'ref.tmp22' (line 752)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
      (longjmp, SEH and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow C:\b\c\b\CrWinAsan\src\components\omnibox\browser\scored_history_match.cc:211 in ScoredHistoryMatch::ScoredHistoryMatch
Shadow bytes around the buggy address:
  0x3007bca0: f2 f2 f8 f8 f2 f2 f8 f8 f2 f2 f8 f8 f2 f2 f8 f8
  0x3007bcb0: f2 f2 f8 f3 f3 f3 00 00 00 00 00 00 00 00 00 00
  0x3007bcc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x3007bcd0: 00 00 00 00 00 00 00 00 f1 f1 00 00 00 f2 f2 f2
  0x3007bce0: f2 f2 00 04 f2 f2 00 04 f2 f2 01 f2 00 00 00 f2
=>0x3007bcf0: f2 f2 f2[f2]00 00 00 f2 f2 f2 f2 f2 00 04 f2 f2
  0x3007bd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x3007bd10: 00 00 00 00 00 f2 f2 f2 f2 f2 f2 f2 f2 f2 00 00
  0x3007bd20: 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3
  0x3007bd30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x3007bd40: f1 f1 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==3240==ABORTING