fixed wrong name for mojo_public_utility_unittests

TBR=bruening@chromium.org
BUG=NONE

Review URL: https://codereview.chromium.org/280623002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269810 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/chrome_tests.py

@@ -384,7 +384,7 @@ class ChromeTests:
 
   def TestMojoPublicUtility(self):
     return self.SimpleTest("mojo_public_utility",
-                           "mojo_public_unittests_unittests")
+                           "mojo_public_utility_unittests")
 
   def TestMojoPublicBindings(self):
     return self.SimpleTest("mojo_public_bindings",