Allow installer::GetLocalizedString to return mode-specific strings.

chrome/installer/util/l10n_string_util.cc

Index: chrome/installer/util/l10n_string_util.cc
diff --git a/chrome/installer/util/l10n_string_util.cc b/chrome/installer/util/l10n_string_util.cc
index 68acc9298640204b789d8335b696a97d4cc27a60..8765c3625b8bce5900e5fcac71c3b4cda49fc7e3 100644
--- a/chrome/installer/util/l10n_string_util.cc
+++ b/chrome/installer/util/l10n_string_util.cc
@@ -16,6 +16,9 @@
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "chrome/install_static/install_details.h"
+#include "chrome/install_static/install_modes.h"
+#include "chrome/installer/util/installer_util_strings.h"
 #include "chrome/installer/util/language_selector.h"
 
 namespace {
@@ -40,6 +43,9 @@ void SetTranslationDelegate(TranslationDelegate* delegate) {
 }
 
 std::wstring GetLocalizedString(int base_message_id) {
+  // Map |base_message_id| to the base id for the current install mode.
+  base_message_id = GetBaseMessageIdForMode(base_message_id);
+
   if (g_translation_delegate)
     return g_translation_delegate->GetLocalizedString(base_message_id);
 
@@ -105,4 +111,35 @@ std::wstring GetCurrentTranslation() {
   return GetLanguageSelector().selected_translation();
 }
 
+int GetBaseMessageIdForMode(int base_message_id) {
+// Generate the constants holding the mode-specific resource ID arrays.
+#define HANDLE_MODE_STRING(id, ...)                                   \
+  static constexpr int k##id##Strings[] = {__VA_ARGS__};              \
+  static_assert(                                                      \
+      arraysize(k##id##Strings) == install_static::NUM_INSTALL_MODES, \
+      "resource " #id                                                 \
+      " has the wrong number of mode-specific "                       \
+      "strings.");
+  DO_MODE_STRINGS
+#undef HANDLE_MODE_STRING
+
+  const int* mode_strings = nullptr;
+  switch (base_message_id) {
+// Generate the cases mapping each mode-specific resource ID to its array.
+#define HANDLE_MODE_STRING(id, ...)    \
+  case id:                             \
+    mode_strings = &k##id##Strings[0]; \
+    break;
+    DO_MODE_STRINGS
+#undef HANDLE_MODE_STRING
+    default:
+      // This ID has no per-mode variants.
+      return base_message_id;
+  }
+
+  // Return the variant of |base_message_id| for the current mode.
+  return mode_strings[install_static::InstallDetails::Get()
+                          .install_mode_index()];
+}
+
 }  // namespace installer