Make Braille IME send space bar as an empty cell instead of letting propagate.

chrome/browser/resources/chromeos/braille_ime/check_braille_ime.py

 #!/usr/bin/env python
 
 # Copyright 2014 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.
 
 '''Uses the closure compiler to check the braille ime.'''
 
 import os
 import re
@@ skipping 42 matching lines @@
   match = re.search(r'version "(?:\d+)\.(\d+)', output)
   if match is None or int(match.group(1)) < 7:
     _error('Java 7 or later is required: \n%s' % output)
 
 
 def _run_closure_compiler():
   print 'Compiling Braille IME.'
   args = [_java_executable, '-jar', _CLOSURE_COMPILER_JAR]
   args.extend(['--compilation_level', 'SIMPLE_OPTIMIZATIONS'])
   args.extend(['--jscomp_error=%s' % error for error in _JSCOMP_ERRORS])
-  args.extend(['--externs', 'externs.js'])
-  args.extend(['--js', 'braille_ime.js'])
-  args.extend(['--js', 'main.js'])
+  args.extend(['--externs', os.path.join(_SCRIPT_DIR, 'externs.js')])
+  args.extend(['--js', os.path.join(_SCRIPT_DIR, 'braille_ime.js')])
+  args.extend(['--js', os.path.join(_SCRIPT_DIR, 'main.js')])
   args.extend(['--js_output_file', '/dev/null'])
   output = _execute_command(args, ignore_exit_status=True)
   success = len(output) == 0
   return success, output
 
 
 def check_braille_ime():
   _check_java()
   return _run_closure_compiler()
 
 
 def main(argv):
   success, output = check_braille_ime()
   print output
   return int(not success)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))