Enable side-by-side beta and dev channels.

chrome/installer/util/l10n_string_util_unittest.cc

Index: chrome/installer/util/l10n_string_util_unittest.cc
diff --git a/chrome/installer/util/l10n_string_util_unittest.cc b/chrome/installer/util/l10n_string_util_unittest.cc
index 6b0010d117f53d1564ec9a263ab7ef8b95c050c3..688c97de3e2eb8cb5c193b47f0746ddb934e5416 100644
--- a/chrome/installer/util/l10n_string_util_unittest.cc
+++ b/chrome/installer/util/l10n_string_util_unittest.cc
@@ -54,6 +54,14 @@ TEST(GetBaseMessageIdForMode, GoogleStringIds) {
       {IDS_APP_SHORTCUTS_SUBDIR_NAME_BASE,
        IDS_INBOUND_MDNS_RULE_DESCRIPTION_BASE, IDS_INBOUND_MDNS_RULE_NAME_BASE,
        IDS_PRODUCT_NAME_BASE});
+  mode_to_strings[install_static::BETA_INDEX] = std::vector<int>(
+      {IDS_APP_SHORTCUTS_SUBDIR_NAME_BETA_BASE,
+       IDS_INBOUND_MDNS_RULE_DESCRIPTION_BETA_BASE,
+       IDS_INBOUND_MDNS_RULE_NAME_BETA_BASE, IDS_SHORTCUT_NAME_BETA_BASE});
+  mode_to_strings[install_static::DEV_INDEX] = std::vector<int>(
+      {IDS_APP_SHORTCUTS_SUBDIR_NAME_DEV_BASE,
+       IDS_INBOUND_MDNS_RULE_DESCRIPTION_DEV_BASE,
+       IDS_INBOUND_MDNS_RULE_NAME_DEV_BASE, IDS_SHORTCUT_NAME_DEV_BASE});
   mode_to_strings[install_static::CANARY_INDEX] = std::vector<int>(
       {IDS_APP_SHORTCUTS_SUBDIR_NAME_CANARY_BASE,
        IDS_INBOUND_MDNS_RULE_DESCRIPTION_CANARY_BASE,