add ignore_edge option in test list.

tests/selenium/main.py

 #!/usr/bin/python2.4
 # Copyright 2009, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
@@ skipping 765 matching lines @@
     if not os.path.exists(pdiff_path):
       # Perceptualdiff.exe does not exist, fail.
       results.AddFailure(
           test_name, browser,
           "Perceptual diff %s does not exist." % pdiff_path)
       continue
 
     pixel_threshold = "10"
     use_colorfactor = False
     use_downsample = False
-
+    use_edge = True
+    edge_threshold = "5"
+    
     # Find out if the test specified any options relating to perceptual diff
     # that will override the defaults.
     for opt in test_options:
       if opt.startswith("pdiff_threshold"):
         pixel_threshold = selenium_utilities.GetArgument(opt)
       elif (opt.startswith("pdiff_threshold_mac") and
             platform.system() == "Darwin"):
         pixel_threshold = selenium_utilities.GetArgument(opt)
       elif (opt.startswith("pdiff_threshold_win") and
             platform.system() == "Microsoft"):
         pixel_threshold = selenium_utilities.GetArgument(opt)
       elif (opt.startswith("pdiff_threshold_linux") and
             platform.system() == "Linux"):
         pixel_threshold = selenium_utilities.GetArgument(opt)
       elif (opt.startswith("colorfactor")):
         colorfactor = selenium_utilities.GetArgument(opt)
         use_colorfactor = True
       elif (opt.startswith("downsample")):
         downsample_factor = selenium_utilities.GetArgument(opt)
         use_downsample = True
+      elif (opt.startswith("pdiff_edge_ignore_off")):
+        use_edge = False
+      elif (opt.startswith("pdiff_edge_threshold")):
+        edge_threshold = selenium_utilities.GetArgument(opt)
 
     # Check if file exists
     if os.path.exists(generated_file):
       diff_file = os.path.join(base_path, screenshotsdir,
                                "compare_%s.png" % actual_name)
 
       # Run perceptual diff
       arguments = [pdiff_path,
                    reference_file,
                    generated_file,
                    "-output", diff_file,
                    "-fov", "45",
                    # Turn on verbose output for the percetual diff so we
                    # can see how far off we are on the threshold.
                    "-verbose",
                    # Set the threshold to zero so we can get a count
                    # of the different pixels.  This causes the program
                    # to return failure for most images, but we can compare
                    # the values ourselves below.
                    "-threshold", "0"]
       if use_colorfactor:
         arguments += ["-colorfactor", colorfactor]
       if use_downsample:
         arguments += ["-downsample", downsample_factor]
-
+      if use_edge:
+        arguments += ["-ignoreEdges", edge_threshold]
+        
       # Print the perceptual diff command line so we can debug easier.
       if verbose:
         print " ".join(arguments)
 
       # diff tool should return 0 on success
       expected_result = 0
 
       pdiff_pipe = subprocess.Popen(arguments,
                                     stdout=subprocess.PIPE,
                                     stderr=subprocess.PIPE)
@@ skipping 103 matching lines @@
   if all_tests_passed:
     # All tests successful.
     return 0
   else:
     # Return error code 1.
     return 1
 
 if __name__ == "__main__":
   remaining_argv = FLAGS(sys.argv)
   main(remaining_argv)