Change fixup_pdf_template.py to open files in binary mode.

testing/tools/fixup_pdf_template.py

 #!/usr/bin/env python
 # Copyright 2014 The PDFium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Expands a hand-written PDF testcase (template) into a valid PDF file.
 
 There are several places in a PDF file where byte-offsets are required. This
 script replaces {{name}}-style variables in the input with calculated results
 
@@ skipping 56 matching lines @@
     if match:
       self.insert_xref_entry(int(match.group(1)), int(match.group(2)))
       line = re.sub(self.OBJECT_PATTERN, self.OBJECT_REPLACEMENT, line)
     self.offset += len(line)
     return line
 
 
 def expand_file(input_path, output_path):
   processor = TemplateProcessor()
   try:
-    with open(input_path, 'r') as infile:
-      with open(output_path, 'w') as outfile:
+    with open(input_path, 'rb') as infile:
+      with open(output_path, 'wb') as outfile:
         for line in infile:
            outfile.write(processor.process_line(line))
   except IOError:
     print >> sys.stderr, 'failed to process %s' % input_path
 
 
 def main():
   parser = optparse.OptionParser()
   parser.add_option('--output-dir', default='')
   options, args = parser.parse_args()
   for testcase_path in args:
     testcase_filename = os.path.basename(testcase_path)
     testcase_root, _ = os.path.splitext(testcase_filename)
     output_dir = os.path.dirname(testcase_path)
     if options.output_dir:
       output_dir = options.output_dir
     output_path = os.path.join(output_dir, testcase_root + '.pdf')
     expand_file(testcase_path, output_path)
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())