AutoTestingHook 285 third_party/tcmalloc/chromium/src/windows/preamble_patcher_test.cc AutoTestingHook hook = MakeTestingHook(IncrementNumber, AutoTestingHook 285 third_party/tcmalloc/vendor/src/windows/preamble_patcher_test.cc AutoTestingHook hook = MakeTestingHook(IncrementNumber,