Enable presubmit pylint in build/android.

build/android/pylib/instrumentation/json_perf_parser.py

 # Copyright 2013 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.
 
 
 """A helper module for parsing JSON objects from perf tests results."""
 
 import json
 
 
@@ skipping 107 matching lines @@
         if result['min'] == -1 or result['min'] > delta:
           result['min'] = delta
         if result['max'] == -1 or result['max'] < delta:
           result['max'] = delta
         total_sum += delta
         result['count'] += 1
         result['data_points'].append(delta)
       if entry['ph'] == 'I':
         result['type'] = 'Instant'
         last_val = val
-  if result['count'] > 0: result['average'] = total_sum / result['count']
+  if result['count'] > 0:
+    result['average'] = total_sum / result['count']
 
   return result
 
 
 def GetAverageRunInfoFromJSONString(json_string, name):
   """Returns the results from GetAverageRunInfo using a JSON string.
 
   Args:
     json_string: The string containing JSON.
     name: The 'name' tag to filter on in the JSON file.
@@ skipping 12 matching lines @@
     name: The 'name' tag to filter on in the JSON file.
 
   Returns:
     See GetAverageRunInfo Returns section.
   """
   with open(json_file, 'r') as f:
     data = f.read()
     perf = json.loads(data)
 
   return GetAverageRunInfo(perf, name)