Fix typos in num_failures_by_type for json results.

mojo/tools/run_mojo_python_tests.py

 #!/usr/bin/env python
 # 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 argparse
 import json
 import os
 import sys
 import time
@@ skipping 31 matching lines @@
 
   loader = unittest.loader.TestLoader()
   print "Running Python unit tests under mojo/public/tools/bindings/pylib ..."
 
   pylib_dir = os.path.join(chromium_src_dir, 'mojo', 'public',
                            'tools', 'bindings', 'pylib')
   if args.tests:
     if pylib_dir not in sys.path:
       sys.path.append(pylib_dir)
     suite = unittest.TestSuite()
-    for test_name in args:
+    for test_name in args.tests:
       suite.addTests(loader.loadTestsFromName(test_name))
   else:
     suite = loader.discover(pylib_dir, pattern='*_unittest.py')
 
   runner = unittest.runner.TextTestRunner(verbosity=(args.verbose + 1))
   result = runner.run(suite)
 
   full_results = _FullResults(suite, result, args.metadata)
   if args.write_full_results_to:
     with open(args.write_full_results_to, 'w') as fp:
@@ skipping 18 matching lines @@
   full_results['version'] = 3
   full_results['seconds_since_epoch'] = time.time()
   for md in metadata:
     key, val = md.split('=', 1)
     full_results[key] = val
 
   all_test_names = _AllTestNames(suite)
   failed_test_names = _FailedTestNames(result)
 
   full_results['num_failures_by_type'] = {
-      'Failure': len(failed_test_names),
-      'Pass': len(all_test_names) - len(failed_test_names),
+      'FAIL': len(failed_test_names),
+      'PASS': len(all_test_names) - len(failed_test_names),
   }
 
   full_results['tests'] = {}
 
   for test_name in all_test_names:
     value = {
         'expected': 'PASS',
         'actual': 'FAIL' if (test_name in failed_test_names) else 'PASS',
     }
     _AddPathToTrie(full_results['tests'], test_name, value)
@@ skipping 21 matching lines @@
     trie[path] = value
     return
   directory, rest = path.split(TEST_SEPARATOR, 1)
   if directory not in trie:
     trie[directory] = {}
   _AddPathToTrie(trie[directory], rest, value)
 
 
 if __name__ == '__main__':
   sys.exit(main())