[iOS] Add a repack steps to iOS upstream for unit tests

ios/chrome/ios_chrome_resources_bundle.gypi

Index: ios/chrome/ios_chrome_resources_bundle.gypi
diff --git a/ios/chrome/ios_chrome_resources_bundle.gypi b/ios/chrome/ios_chrome_resources_bundle.gypi
new file mode 100644
index 0000000000000000000000000000000000000000..f37a61a64107ce835edd5798c11b38953f08757a
--- /dev/null
+++ b/ios/chrome/ios_chrome_resources_bundle.gypi
@@ -0,0 +1,16 @@
+# Copyright 2015 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.
+{
+  'dependencies': [
+    '<(DEPTH)/ios/chrome/ios_chrome_resources.gyp:ios_packed_resources',
+  ],
+  'mac_bundle_resources': [
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_100_percent.pak',
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_200_percent.pak',
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_300_percent.pak',
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/resources.pak',
+    '<!@pymod_do_main(ios_repack_locales -o -s <(SHARED_INTERMEDIATE_DIR) '
+      '-x <(SHARED_INTERMEDIATE_DIR)/repack_ios <(locales))',
+  ],
+}