diff -r 000000000000 -r 6474c204b198 mobile/locales/filter.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/locales/filter.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,42 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""This routine controls which localizable files and entries are
+reported and l10n-merged.
+This needs to stay in sync with the copy in mobile/android/locales.
+"""
+
+def test(mod, path, entity = None):
+  import re
+  # ignore anything but mobile, which is our local repo checkout name
+  if mod not in ("netwerk", "dom", "toolkit", "security/manager",
+                 "services/sync", "mobile",
+                 "mobile/android/base",  "mobile/android"):
+    return "ignore"
+
+  if mod not in ("mobile", "mobile/android"):
+    # we only have exceptions for mobile*
+    return "error"
+  if mod == "mobile/android":
+    if not entity:
+      if (re.match(r"mobile-l10n.js", path) or
+          re.match(r"defines.inc", path)):
+        return "ignore"
+    if path == "defines.inc":
+      if entity == "MOZ_LANGPACK_CONTRIBUTORS":
+        return "ignore"
+    return "error"
+
+  # we're in mod == "mobile"
+  if re.match(r"searchplugins\/.+\.xml", path):
+    return "ignore"
+  if path == "chrome/region.properties":
+    # only region.properties exceptions remain
+    if (re.match(r"browser\.search\.order\.[1-9]", entity) or
+        re.match(r"browser\.contentHandlers\.types\.[0-5]", entity) or
+        re.match(r"gecko\.handlerService\.schemes\.", entity) or
+      re.match(r"gecko\.handlerService\.defaultHandlersVersion", entity)):
+      return "ignore"
+
+  return "error"