[Telemetry] Rename PermanentlyDisableBenchmark to DisableBenchmark.

telemetry/telemetry/story/expectations_unittest.py

Index: telemetry/telemetry/story/expectations_unittest.py
diff --git a/telemetry/telemetry/story/expectations_unittest.py b/telemetry/telemetry/story/expectations_unittest.py
index 5f3723aa94193b324b713988a4887fd52deb114d..05f9a968e97b900c58d16f2897072c57da6ac325 100644
--- a/telemetry/telemetry/story/expectations_unittest.py
+++ b/telemetry/telemetry/story/expectations_unittest.py
@@ -386,15 +386,14 @@ class StoryExpectationsTest(unittest.TestCase):
   def testCantDisableAfterInit(self):
     e = expectations.StoryExpectations()
     with self.assertRaises(AssertionError):
-      e.PermanentlyDisableBenchmark(['test'], 'test')
+      e.DisableBenchmark(['test'], 'test')
     with self.assertRaises(AssertionError):
       e.DisableStory('story', ['platform'], 'reason')
 
-  def testPermanentlyDisableBenchmark(self):
+  def testDisableBenchmark(self):
     class FooExpectations(expectations.StoryExpectations):
       def SetExpectations(self):
-        self.PermanentlyDisableBenchmark(
-            [expectations.ALL_WIN], 'crbug.com/123')
+        self.DisableBenchmark([expectations.ALL_WIN], 'crbug.com/123')
 
     e = FooExpectations()
     self.platform.SetOSName('win')