webkitpy: Unify the exit status codes.

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/win.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/win.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/win.py b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/win.py
index 883aaf7a08011ecddf45ab31c88adde27437397d..212e6c7490d8c97277feef8035cca4c027f089fa 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/win.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/win.py
@@ -38,6 +38,7 @@ try:
 except ImportError:
     _winreg = None  # pylint: disable=invalid-name
 
+from webkitpy.common import exit_codes
 from webkitpy.layout_tests.breakpad.dump_reader_win import DumpReaderWin
 from webkitpy.layout_tests.models import test_run_results
 from webkitpy.layout_tests.port import base
@@ -179,7 +180,7 @@ class WinPort(base.Port):
 
         self._crash_service_available = self._check_crash_service_available()
         if not self._crash_service_available:
-            result = test_run_results.UNEXPECTED_ERROR_EXIT_STATUS
+            result = exit_codes.UNEXPECTED_ERROR_EXIT_STATUS
 
         if result:
             _log.error('For complete Windows build requirements, please see:')