Mojo: Add PRESUBMIT.py to mojo/.

mojo/tools/generate_java_callback_interfaces.py

 """Generate the org.chromium.mojo.bindings.Callbacks interface"""
 
 import argparse
 import sys
 
 CALLBACK_TEMPLATE = ("""
     /**
       * A generic %d-argument callback.
       *
       * %s
@@ skipping 17 matching lines @@
 package org.chromium.mojo.bindings;
 
 /**
  * Contains a generic interface for callbacks.
  */
 public interface Callbacks {
 %s
 }""")
 
 def GenerateCallback(nb_args):
-   params = '\n      * '.join(
-       ['@param <T%d> the type of argument %d.' % (i+1, i+1)
-        for i in xrange(nb_args)])
-   template_parameters = ', '.join(['T%d' % (i+1) for i in xrange(nb_args)])
-   callback_parameters = ', '.join(['T%d arg%d' % ((i+1), (i+1))
-                                    for i in xrange(nb_args)])
-   return CALLBACK_TEMPLATE % (nb_args, params, nb_args, template_parameters,
-                               callback_parameters)
+  params = '\n      * '.join(
+      ['@param <T%d> the type of argument %d.' % (i+1, i+1)
+       for i in xrange(nb_args)])
+  template_parameters = ', '.join(['T%d' % (i+1) for i in xrange(nb_args)])
+  callback_parameters = ', '.join(['T%d arg%d' % ((i+1), (i+1))
+                                   for i in xrange(nb_args)])
+  return CALLBACK_TEMPLATE % (nb_args, params, nb_args, template_parameters,
+                              callback_parameters)
 
 def main():
   parser = argparse.ArgumentParser(
       description="Generate org.chromium.mojo.bindings.Callbacks")
   parser.add_argument("max_args", nargs=1, type=int,
       help="maximal number of arguments to generate callbacks for")
   args = parser.parse_args()
   max_args = args.max_args[0]
   print INTERFACE_TEMPLATE % ''.join([GenerateCallback(i+1)
                                       for i in xrange(max_args)])
   return 0
 
 if __name__ == "__main__":
   sys.exit(main())