diff -r 000000000000 -r 6474c204b198 media/webrtc/trunk/build/grit_action.gypi
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/webrtc/trunk/build/grit_action.gypi	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,33 @@
+# Copyright (c) 2011 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 file is meant to be included into an action to invoke grit in a
+# consistent manner. To use this the following variables need to be
+# defined:
+#   grit_grd_file: string: grd file path
+#   grit_out_dir: string: the output directory path
+
+# It would be really nice to do this with a rule instead of actions, but it
+# would need to determine inputs and outputs via grit_info on a per-file
+# basis. GYP rules don’t currently support that. They could be extended to
+# do this, but then every generator would need to be updated to handle this.
+
+{
+  'variables': {
+    'grit_cmd': ['python', '<(DEPTH)/tools/grit/grit.py'],
+  },
+  'inputs': [
+    '<!@pymod_do_main(grit_info <@(grit_defines) --inputs <(grit_grd_file))',
+  ],
+  'outputs': [
+    '<!@pymod_do_main(grit_info <@(grit_defines) --outputs \'<(grit_out_dir)\' <(grit_grd_file))',
+  ],
+  'action': ['<@(grit_cmd)',
+             '-i', '<(grit_grd_file)', 'build',
+             '-fGRIT_DIR/../gritsettings/resource_ids',
+             '-o', '<(grit_out_dir)',
+             '<@(grit_defines)' ],
+  'msvs_cygwin_shell': 0,
+  'message': 'Generating resources from <(grit_grd_file)',
+}