rebaseline.py: keep going if we encounter an "INVALID" entry in the JSON file

tools/rebaseline.py

 #!/usr/bin/python
 
 '''
 Copyright 2012 Google Inc.
 
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 '''
 
 '''
@@ skipping 122 matching lines @@
         test_name = self._testname_pattern.match(infilename).group(1)
         if not test_name:
             print '# unable to find test_name for infilename %s' % infilename
             return False
         try:
             hash_type, hash_value = all_results[infilename]
         except KeyError:
             print ('# unable to find filename %s in all_results dict' %
                    infilename)
             return False
+        except ValueError as e:
+            print '# ValueError reading filename %s from all_results dict: %s'%(
+                infilename, e)
+            return False
         url = '%s/%s/%s/%s.png' % (self._googlestorage_gm_actuals_root,
                                    hash_type, test_name, hash_value)
         try:
             self._DownloadFile(source_url=url, dest_filename=outfilename)
             return True
         except CommandFailedException:
             print '# Couldn\'t fetch gs_url %s' % url
             return False
 
     # Download a single actual result from skia-autogen, returning True if it
@@ skipping 245 matching lines @@
                     '"--tests aaclip bigmatrix"; if unspecified, then all ' +
                     'failing tests (according to the actual-results.json ' +
                     'file) will be rebaselined.')
 args = parser.parse_args()
 rebaseliner = Rebaseliner(tests=args.tests, configs=args.configs,
                           subdirs=args.subdirs, dry_run=args.dry_run,
                           json_base_url=args.json_base_url,
                           json_filename=args.json_filename,
                           add_new=args.add_new)
 rebaseliner.RebaselineAll()