Revert of Move GN grit scripts out of secondary tree.

tools/grit/stamp_grit_sources.py

-# 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.
-
-# This script enumerates the files in the given directory, writing an empty
-# stamp file and a .d file listing the inputs required to make the stamp. This
-# allows us to dynamically depend on the grit sources without enumerating the
-# grit directory for every invocation of grit (which is what adding the source
-# files to every .grd file's .d file would entail) or shelling out to grit
-# synchronously during GN execution to get the list (which would be slow).
-#
-# Usage:
-#    stamp_grit_sources.py <directory> <stamp-file> <.d-file>
-
-import os
-import sys
-
-def GritSourceFiles(grit_root_dir):
-  files = []
-  for root, _, filenames in os.walk(grit_root_dir):
-    grit_src = [os.path.join(root, f) for f in filenames
-                if f.endswith('.py') and not f.endswith('_unittest.py')]
-    files.extend(grit_src)
-  files = [f.replace('\\', '/') for f in files]
-  return sorted(files)
-
-
-def WriteDepFile(dep_file, stamp_file, source_files):
-  with open(dep_file, "w") as f:
-    f.write(stamp_file)
-    f.write(": ")
-    f.write(' '.join(source_files))
-
-
-def WriteStampFile(stamp_file):
-  with open(stamp_file, "w"):
-    pass
-
-
-def main(argv):
-  if len(argv) != 4:
-    print "Error: expecting 3 args."
-    return 1
-
-  grit_root_dir = sys.argv[1]
-  stamp_file = sys.argv[2]
-  dep_file = sys.argv[3]
-
-  WriteStampFile(stamp_file)
-  WriteDepFile(dep_file, stamp_file, GritSourceFiles(grit_root_dir))
-  return 0
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))