Extensions: Switch to new permission message system, part V

tools/metrics/histograms/update_histogram_enum.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.
 
 """Updates enums in histograms.xml file with values read from provided C++ enum.
 
 If the file was pretty-printed, the updated version is pretty-printed too.
 """
 
 import logging
@@ skipping 71 matching lines @@
   return item_node
 
 
 def UpdateHistogramDefinitions(histogram_enum_name, source_enum_values,
                                source_enum_path, document):
   """Updates the enum node named |histogram_enum_name| based on the definition
   stored in |source_enum_values|. Existing items for which |source_enum_values|
   doesn't contain any corresponding data will be preserved. |source_enum_path|
   will be used to insert a comment.
   """
-  # Get a dom of <enum name=|name| ...> node in |document|.
+  # Get a dom of <enum name=|histogram_enum_name| ...> node in |document|.
   for enum_node in document.getElementsByTagName('enum'):
     if enum_node.attributes['name'].value == histogram_enum_name:
       break
   else:
-    raise UserError('No {0} enum node found'.format(name))
+    raise UserError('No {0} enum node found'.format(histogram_enum_name))
 
   new_item_nodes = {}
   new_comments = []
 
   # Add a "Generated from (...)" comment.
   new_comments.append(
       document.createComment(' Generated from {0} '.format(source_enum_path)))
 
   # Create item nodes for each of the enum values.
   for value, label in source_enum_values.iteritems():
@@ skipping 68 matching lines @@
   read from |source_enum_path|, where |start_marker| and |end_marker| indicate
   the beginning and end of the source enum definition, respectively.
   """
 
   Log('Reading histogram enum definition from "{0}".'.format(source_enum_path))
   source_enum_values = ReadHistogramValues(source_enum_path, start_marker,
                                            end_marker)
 
   UpdateHistogramFromDict(histogram_enum_name, source_enum_values,
       source_enum_path)