[Findit] Add timestamp of CL commit and fix two bugs.

tools/findit/match_set.py

 # Copyright (c) 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.
 
 import re
 
 from threading import Lock
 
 import crash_utils
 
@@ skipping 21 matching lines @@
     component_name: The name of the component that this CL belongs to.
     stack_frame_indices: For files that caused crash, list of where in the
                          stackframe they occur.
     priorities: A list of priorities for each of the changed file. A priority
                 is 1 if the file changes a crashed line, and 2 if it changes
                 the file but not the crashed line.
     reivision_url: The revision URL of the CL.
     review_url: The codereview URL that reviews this CL.
     reviewers: The list of people that reviewed this CL.
     reason: The reason why this CL is suspected.
+    time: When this CL was committed.
   """
   REVERT_PATTERN = re.compile(r'(revert\w*) r?(\d+)', re.I)
 
   def __init__(self, revision, component_name):
     self.is_revert = False
     self.revert_of = None
     self.message = None
     self.crashed_line_numbers = []
     self.function_list = []
     self.min_distance = crash_utils.INFINITY
     self.min_distance_info = None
     self.changed_files = []
     self.changed_file_urls = []
     self.author = revision['author']
     self.component_name = component_name
     self.stack_frame_indices = []
     self.priorities = []
     self.revision_url = revision['url']
     self.review_url = ''
     self.reviewers = []
     self.reason = None
+    self.time = revision['time']
 
   def ParseMessage(self, message, codereview_api_url):
     """Parses the message.
 
     It checks the message to extract the code review website and list of
     reviewers, and it also checks if the CL is a revert of another CL.
 
     Args:
       message: The message to parse.
       codereview_api_url: URL to retrieve codereview data from.
@@ skipping 44 matching lines @@
     self.codereview_api_url = codereview_api_url
     self.matches = {}
     self.cls_to_ignore = set()
     self.matches_lock = Lock()
 
   def RemoveRevertedCLs(self):
     """Removes CLs that are revert."""
     for cl in self.matches:
       if cl in self.cls_to_ignore:
         del self.matches[cl]