Disable unit tests that fail on cros.

tools/telemetry/telemetry/core/browser_unittest.py

Index: tools/telemetry/telemetry/core/browser_unittest.py
diff --git a/tools/telemetry/telemetry/core/browser_unittest.py b/tools/telemetry/telemetry/core/browser_unittest.py
index d389cf27235c4b003836c5cd64d55eb82a4a77ed..2588bdba445ed06d0b66e644585fba060671b16e 100644
--- a/tools/telemetry/telemetry/core/browser_unittest.py
+++ b/tools/telemetry/telemetry/core/browser_unittest.py
@@ -10,6 +10,7 @@ from telemetry.core import gpu_device
 from telemetry.core import gpu_info
 from telemetry.core import system_info
 from telemetry.core import util
+from telemetry.unittest import DisabledTestOnCrOS
 from telemetry.unittest import options_for_unittests
 
 class BrowserTest(unittest.TestCase):
@@ -69,6 +70,7 @@ class BrowserTest(unittest.TestCase):
     self.assertEquals(t.EvaluateJavaScript('navigator.userAgent'),
                       'telemetry')
 
+  @DisabledTestOnCrOS
   def testVersionDetection(self):
     b = self.CreateBrowser()
     v = b._browser_backend._inspector_protocol_version # pylint: disable=W0212