webkitpy: Unify the exit status codes.

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

Index: third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/test.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/test.py b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/test.py
index 37394d89cb0d3d9c1e584500384f39af2bcf2338..43dce0d7baa2a21a51a4e5b8e3e7259c26063e99 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/test.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/test.py
@@ -29,6 +29,7 @@
 import base64
 import time
 
+from webkitpy.common import exit_codes
 from webkitpy.common.system.crash_logs import CrashLogs
 from webkitpy.layout_tests.models import test_run_results
 from webkitpy.layout_tests.models.test_configuration import TestConfiguration
@@ -439,10 +440,10 @@ class TestPort(Port):
         return 1
 
     def check_build(self, needs_http, printer):
-        return test_run_results.OK_EXIT_STATUS
+        return exit_codes.OK_EXIT_STATUS
 
     def check_sys_deps(self, needs_http):
-        return test_run_results.OK_EXIT_STATUS
+        return exit_codes.OK_EXIT_STATUS
 
     def default_configuration(self):
         return 'Release'