Enable media_cns_cases on Linux (Android is excluded on the bot).

BUG=326154

Review URL: https://codereview.chromium.org/100513005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245318 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf/benchmarks/media.py

@@ -31,7 +31,6 @@ class Media(test.Test):
 class MediaNetworkSimulation(test.Test):
   """Obtains media metrics under different network simulations."""
   test = media.Media
-  enabled = not sys.platform.startswith('linux')
   page_set = 'page_sets/media_cns_cases.json'
 
 class MediaAndroid(test.Test):