Updating references from story.display_name to story.name

tools/perf/benchmarks/system_health_smoke_test.py

Index: tools/perf/benchmarks/system_health_smoke_test.py
diff --git a/tools/perf/benchmarks/system_health_smoke_test.py b/tools/perf/benchmarks/system_health_smoke_test.py
index 3f02a94d6c2d24b2886795ef4918b05e69d7b1fa..bca8014d5d48c413843eaedc7b6745292e59ee47 100644
--- a/tools/perf/benchmarks/system_health_smoke_test.py
+++ b/tools/perf/benchmarks/system_health_smoke_test.py
@@ -113,9 +113,9 @@ def _GenerateSmokeTestCase(benchmark_class, story_to_smoke_test):
 
   # We attach the test method to SystemHealthBenchmarkSmokeTest dynamically
   # so that we can set the test method name to include
-  # '<benchmark class name>.<story display name>'.
+  # '<benchmark class name>.<story name>'.
   test_method_name = '%s.%s' % (
-      benchmark_class.Name(), story_to_smoke_test.display_name)
+      benchmark_class.Name(), story_to_smoke_test.name)
 
   class SystemHealthBenchmarkSmokeTest(unittest.TestCase):
     pass