[Findit] Pass changed files info to Fracas, 2 face design.

appengine/findit/crash/scorers/aggregator.py

-# Copyright 2016 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.
-
-"""Aggregator aggregates all the scorers passed in.
-
-Multiplies scores together and combines reasons and summaries the result.
-"""
-
-
-class Aggregator(object):
-
-  def __init__(self, scorers):
-    self.scorers = scorers
-
-  def ScoreAndReason(self, result):
-    """Sets result.confidence and result.reason."""
-
-    score = 1.0
-    reason = ''
-    for i, scorer in enumerate(self.scorers):
-      current_score, current_reason = scorer(result)
-      # TODO(katesonia): Compare this mutiply aggregator with a vector of scores
-      # aggregator later.
-      score *= current_score
-      reason += '(%d) %s\n' % (i + 1, current_reason)
-
-    reason += '\n%s' % str(result)
-
-    result.confidence = score
-    result.reason = reason