Hook up show-config to testing scripts.

testing/tools/suppressor.py

 #!/usr/bin/env python
 # Copyright 2015 The PDFium 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 os
 
 import common
 
 class Suppressor:
-  def __init__(self, finder):
+  def __init__(self, finder, feature_string):
+    feature_vector = feature_string.strip().split(",")
+    v8_option = ["nov8", "v8"]["V8" in feature_vector]
+    xfa_option = ["noxfa", "xfa"]["XFA" in feature_vector]
     with open(os.path.join(finder.TestingDir(), 'SUPPRESSIONS')) as f:
       self.suppression_set = set(self._FilterSuppressions(
-        common.os_name(), "v8", "noxfa", self._ExtractSuppressions(f)))
+        common.os_name(), v8_option, xfa_option, self._ExtractSuppressions(f)))
 
   def _ExtractSuppressions(self, f):
     return [y.split(' ') for y in
             [x.split('#')[0].strip() for x in
              f.readlines()] if y]
 
   def _FilterSuppressions(self, os, js, xfa, unfiltered_list):
     return [x[0] for x in unfiltered_list
             if self._MatchSuppression(x, os, js, xfa)]
 
   def _MatchSuppression(self, item, os, js, xfa):
     os_column = item[1].split(",");
     js_column = item[2].split(",");
     xfa_column = item[3].split(",");
     return (('*' in os_column or os in os_column) and
             ('*' in js_column or js in js_column) and
             ('*' in xfa_column or xfa in xfa_column))
 
   def IsSuppressed(self, input_filename):
     if input_filename in self.suppression_set:
       print "%s is suppressed" % input_filename
       return True
     return False