Unbreak mac component build.

build/rm.py

Index: build/rm.py
diff --git a/build/rm.py b/build/rm.py
new file mode 100755
index 0000000000000000000000000000000000000000..5ca642d46e710f25f2beb1caf1be202787219550
--- /dev/null
+++ b/build/rm.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+# Copyright (c) 2016 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.
+
+"""Delete a file.
+
+This module works much like the rm posix command.
+"""
+
+import argparse
+import os
+import sys
+
+
+def Main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('files', nargs='+')
+  parser.add_argument('-f', '--force', action='store_true',
+                      help="don't err on missing")
+  parser.add_argument('--stamp', required=True, help='touch this file')
+  args = parser.parse_args()
+  for f in args.files:
+    try:
+      os.remove(f)
+    except OSError:
+      if not args.force:
+        print >>sys.stderr, "'%s' does not exist" % f
+        return 1
+
+  with open(args.stamp, 'w'):
+    os.utime(args.stamp, None)
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(Main())