Disable jetstream on Win XP.

BUG=381742
TBR=tonyg@chromium.org
NOTRY=true
NOTREECHECKS=true

Review URL: https://codereview.chromium.org/320013002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@275476 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf/benchmarks/jetstream.py

@@ -70,6 +70,7 @@ class _JetstreamMeasurement(page_measurement.PageMeasurement):
 
 
 @test.Disabled('android')  # Crashes on GN.
+@test.Disabled('xp')  # Crashes on Win XP. See crbug.com/381742 for an example.
 class Jetstream(test.Test):
   test = _JetstreamMeasurement