rename rebaseline_server JSON constants to be more consistent

gm/rebaseline_server/column.py

 #!/usr/bin/python
 
 """
 Copyright 2014 Google Inc.
 
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 
 ColumnHeaderFactory class (see class docstring for details)
 """
 
 # Keys used within dictionary representation of each column header.
 # NOTE: Keep these in sync with static/constants.js
-KEY__EXTRACOLUMNHEADERS = 'extraColumnHeaders'

[epoger, 2014/05/12 19:17:08]

Some of the constant definitions moved around  (this one became
KEY__ROOT__EXTRACOLUMNHEADERS and moved to imagepairset.py)

 KEY__EXTRACOLUMNHEADERS__HEADER_TEXT = 'headerText'
 KEY__EXTRACOLUMNHEADERS__HEADER_URL = 'headerUrl'
 KEY__EXTRACOLUMNHEADERS__IS_FILTERABLE = 'isFilterable'
 KEY__EXTRACOLUMNHEADERS__IS_SORTABLE = 'isSortable'
 KEY__EXTRACOLUMNHEADERS__VALUES_AND_COUNTS = 'valuesAndCounts'
 
 
 class ColumnHeaderFactory(object):
   """Factory which assembles the header for a single column of data."""
 
@@ skipping 34 matching lines @@
         KEY__EXTRACOLUMNHEADERS__HEADER_TEXT: self._header_text,
         KEY__EXTRACOLUMNHEADERS__IS_FILTERABLE: self._is_filterable,
         KEY__EXTRACOLUMNHEADERS__IS_SORTABLE: self._is_sortable,
     }
     if self._header_url:
       asdict[KEY__EXTRACOLUMNHEADERS__HEADER_URL] = self._header_url
     if self._include_values_and_counts and values_and_counts_dict:
       asdict[KEY__EXTRACOLUMNHEADERS__VALUES_AND_COUNTS] = sorted(
           values_and_counts_dict.items())
     return asdict