Disable 2 more tests on cros.

BUG=483212

Review URL: https://codereview.chromium.org/1140823004

Cr-Commit-Position: refs/heads/master@{#329523}

tools/telemetry/telemetry/core/backends/chrome/cros_unittest.py

@@ -64,7 +64,7 @@ class CrOSLoginTest(cros_test_case.CrOSTestCase):
         pass
       util.WaitFor(lambda: not self._IsCryptohomeMounted(), 20)
 
-  @decorators.Enabled('chromeos')
+  @decorators.Disabled
   def testGaiaLogin(self):
     """Tests gaia login. Credentials are expected to be found in a
     credentials.txt file, with a single line of format username:password."""

tools/telemetry/telemetry/core/backends/chrome_inspector/inspector_websocket_unittest.py

@@ -87,6 +87,7 @@ class InspectorWebsocketUnittest(unittest.TestCase):
       inspector.DispatchNotifications(timeout=10)
     self.assertEqual(0, len(results))
 
+  @decorators.Disabled('chromeos')  # crbug.com/483212
   def testUnregisterDomain(self):
     inspector = inspector_websocket.InspectorWebsocket()
     fake_socket = FakeSocket(self._mock_timer)