Fix perfbotnot feature param setting from trial testing config.

tools/variations/fieldtrial_util_unittest.py

Index: tools/variations/fieldtrial_util_unittest.py
diff --git a/tools/variations/fieldtrial_util_unittest.py b/tools/variations/fieldtrial_util_unittest.py
index a215201a5fb43001544de8c5783d5435647b5639..5d118f0f8be20ce47f118f11cae2f5319d50da85 100644
--- a/tools/variations/fieldtrial_util_unittest.py
+++ b/tools/variations/fieldtrial_util_unittest.py
@@ -66,8 +66,8 @@ class FieldTrialUtilUnittest(unittest.TestCase):
         '--force-fieldtrial-params='
         'SimpleParams.Default:id/abc,'
         'c.d%2E:url/http%3A%2F%2Fwww%2Egoogle%2Ecom',
-        '--enable-features=a,b,x',
-        '--disable-features=y'], result)
+        '--enable-features="a<SimpleParams,b<SimpleParams,x<c"',
+        '--disable-features="y<c"'], result)

[perezju, 2017/03/30 08:16:06]

Are we sure that those quotes are needed there?

The command line flags are not passed through the shell, so there should be no
need of any special quoting.

[Alexei Svitkine (slow), 2017/03/30 14:28:30]

You're right that it might not be necessary, though I think it should work
either way, no?

 
   def test_DuplicateEnableFeatures(self):
     config = '''{