Generate a static struct from fieldtrial_testing_config

tools/variations/fieldtrial_util.py

 # Copyright 2015 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 json
 import sys
 
 
 def _hex(ch):
   hv = hex(ord(ch)).replace('0x', '')
   hv.zfill(2)
   return hv.upper()
 
 # URL escapes the delimiter characters from the output. urllib.quote is not
 # used because it cannot escape '.'.
 def _escape(str):
   result = str
   # Must perform replace on '%' first before the others.
   for c in '%:/.,':
     result = result.replace(c, '%' + _hex(c))
   return result
 
 # Generate a list of command-line switches to enable field trials defined in
 # fieldtrial_testing_config_*.json.
-def GenerateArgs(base_config_path, platform_config_path=None):
+def GenerateArgs(config_path):
   try:
-    with open(base_config_path, 'r') as base_file:
+    with open(config_path, 'r') as base_file:
       variations = json.load(base_file)
-      if platform_config_path:
-        try:
-          with open(platform_config_path, 'r') as platform_file:
-            platform_specifics = json.load(platform_file)
-            variations.update(platform_specifics)
-        except (IOError, ValueError):
-          pass
   except (IOError, ValueError):
     return []
 
   field_trials = []
   params = []
   for trial, groups in variations.iteritems():
     if not len(groups):
       continue
     # For now, only take the first group.
     group = groups[0]
@@ skipping 18 matching lines @@
   return args
 
 def main():
   if len(sys.argv) < 3:
     print 'Usage: fieldtrial_util.py [base_config_path] [platform_config_path]'
     exit(-1)
   print GenerateArgs(sys.argv[1], sys.argv[2])
 
 if __name__ == '__main__':
   main()