Add the reason in heap profiler dumps.

tools/deep_memory_profiler/dmprof.py

 # Copyright (c) 2012 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.
 
 """The deep heap profiler script for Chrome."""
 
 import copy
 import datetime
 import json
 import logging
@@ skipping 926 matching lines @@
       if self._lines[ln].startswith('Time:'):
         matched_seconds = self._TIME_PATTERN_SECONDS.match(self._lines[ln])
         matched_format = self._TIME_PATTERN_FORMAT.match(self._lines[ln])
         if matched_format:
           self._time = time.mktime(datetime.datetime.strptime(
               matched_format.group(1), '%Y/%m/%d %H:%M:%S').timetuple())
           if matched_format.group(2):
             self._time += float(matched_format.group(2)[1:]) / 1000.0
         elif matched_seconds:
           self._time = float(matched_seconds.group(1))
+      elif self._lines[ln].startswith('Reason:'):
+        pass  # Nothing to do for 'Reason:'
       else:
         break
       ln += 1
 
   def _parse_mmap_list(self):
     """Parses lines in self._lines as a mmap list."""
     (ln, found) = skip_while(
         0, len(self._lines),
         lambda n: self._lines[n] != 'MMAP_LIST:\n')
     if not found:
@@ skipping 857 matching lines @@
     errorcode = COMMANDS[action]().do(sys.argv)
   except ParsingException, e:
     errorcode = 1
     sys.stderr.write('Exit by parsing error: %s\n' % e)
 
   return errorcode
 
 
 if __name__ == '__main__':
   sys.exit(main())