Chrome proxy telemetry test: better via header checking

tools/perf/measurements/chrome_proxy.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import base64
 import logging
 import urlparse
 
 from metrics import chrome_proxy
 from metrics import loading
@@ skipping 78 matching lines @@
         logging.warning('Navigation timeout on page %s',
                         page.name if page.name else page.url)
       else:
         raise e
 
 
 class ChromeProxyHeaders(ChromeProxyValidation):
   """Correctness measurement for response headers."""
 
   def __init__(self):
-    super(ChromeProxyHeaders, self).__init__()
+    super(ChromeProxyHeaders, self).__init__(restart_after_each_page=True)
 
   def AddResults(self, tab, results):
     self._metrics.AddResultsForHeaderValidation(tab, results)
 
 
 class ChromeProxyBypass(ChromeProxyValidation):
   """Correctness measurement for bypass responses."""
 
   def __init__(self):
     super(ChromeProxyBypass, self).__init__(restart_after_each_page=True)
@@ skipping 133 matching lines @@
             ],
         'bypass': [self._metrics.AddResultsForBypass],
         'safebrowsing': [self._metrics.AddResultsForSafebrowsing],
         }
     if not self._page.name in page_to_metrics:
       raise page_measurement.MeasurementFailure(
           'Invalid page name (%s) in smoke. Page name must be one of:\n%s' % (
           self._page.name, page_to_metrics.keys()))
     for add_result in page_to_metrics[self._page.name]:
       add_result(tab, results)