Mirror images for RTL languages at build time.

ui/android/java/mirror_images_config

Index: ui/android/java/mirror_images_config
diff --git a/ui/android/java/mirror_images_config b/ui/android/java/mirror_images_config
new file mode 100644
index 0000000000000000000000000000000000000000..4089153de7eb76983bcb86a383841b85f4dc0f86
--- /dev/null
+++ b/ui/android/java/mirror_images_config
@@ -0,0 +1,16 @@
+# Copyright 2013 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.
+
+# Specifies which images will be mirrored (i.e. flipped horizontally) for
+# right-to-left (RTL) languages. Each image in res/drawable* must appear in one
+# of the two lists below. For more info, see mirror_images.py.
+
+images_to_mirror = [
+]
+
+images_not_to_mirror = [
+  'autofill_popup_background_down.9.png',
+  'autofill_popup_background_up.9.png',
+  'color_picker_advanced_select_handle.png',
+]