Widen one Valgrind suppression, add a few more for new bugs

tools/valgrind/memcheck_analyze.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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.
 
 # memcheck_analyze.py
 
 ''' Given a valgrind XML file, parses errors and uniques them.'''
 
 import gdb_helper
@@ skipping 249 matching lines @@
           output += " (" + frame[OBJECT_FILE] + ")"
         output += "\n"
 
     assert self._suppression != None, "Your Valgrind doesn't generate " \
                                       "suppressions - is it too old?"
 
     if self._testcase:
       output += "The report came from the `%s` test.\n" % self._testcase
     output += "Suppression (error hash=#%016X#):\n" % self.ErrorHash()
     output += ("  For more info on using suppressions see "
-               "http://dev.chromium.org/developers/how-tos/using-valgrind#TOC-Suppressing-Errors")
+               "http://dev.chromium.org/developers/tree-sheriffs/sheriff-details-chromium/memory-sheriff#TOC-Suppressing-memory-reports")
 
     # Widen suppression slightly to make portable between mac and linux
     # TODO(timurrrr): Oops, these transformations should happen
     # BEFORE calculating the hash!
     supp = self._suppression;
     supp = supp.replace("fun:_Znwj", "fun:_Znw*")
     supp = supp.replace("fun:_Znwm", "fun:_Znw*")
     supp = supp.replace("fun:_Znaj", "fun:_Zna*")
     supp = supp.replace("fun:_Znam", "fun:_Zna*")
 
@@ skipping 334 matching lines @@
   if len(args) == 0:
     parser.error("no filename specified")
   filenames = args
 
   analyzer = MemcheckAnalyzer(options.source_dir, use_gdb=True)
   return analyzer.Report(filenames, None)
 
 
 if __name__ == "__main__":
   sys.exit(_main())