[Predator] Making the Y sets conditional for loglinear models

appengine/findit/crash/suspect.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.
 
 from collections import namedtuple
 
 
 # TODO(wrengr): we should change things to use integers with None as
 # \"infinity\", rather than using floats.
 # TODO(http://crbug.com/644476): this class needs a better name.
@@ skipping 104 matching lines @@
     stack_infos (list of StackInfo): List of the frames of this file
       together with their callstack priorities.
     blame (Blame): Blame oject of this file.
   """
   suspect.file_to_stack_infos[file_path] = stack_infos
 
   if not blame:
     return
 
   min_distance = float('inf')
-  min_distance_frame = stack_infos[0][0]
+  min_distance_frame = stack_infos[0].frame
   for region in blame:
     if region.revision != suspect.changelog.revision:
       continue
 
     region_start = region.start
     region_end = region_start + region.count - 1
     for frame, _ in stack_infos:
       frame_start = frame.crashed_line_numbers[0]
       frame_end = frame.crashed_line_numbers[-1]
       distance = _DistanceBetweenLineRanges((frame_start, frame_end),
@@ skipping 55 matching lines @@
       blame (Blame): Blame of the file.
     """
     for changelog in changelogs:
       if self._ignore_cls and changelog.revision in self._ignore_cls:
         continue
 
       if changelog.revision not in self:
         self[changelog.revision] = Suspect(changelog, dep_path)
 
       _UpdateSuspect(self[changelog.revision], file_path, stack_infos, blame)