If no locale data files can be found, show a dialog and exit

chrome/browser/browser_main.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1451 matching lines @@
     // anything since it comes from Cocoa.
 #if defined(OS_MACOSX)
     g_browser_process->SetApplicationLocale(l10n_util::GetLocaleOverride());
 #else
     const std::string locale =
         local_state->GetString(prefs::kApplicationLocale);
     // On a POSIX OS other than ChromeOS, the parameter that is passed to the
     // method InitSharedInstance is ignored.
     const std::string loaded_locale =
         ResourceBundle::InitSharedInstance(locale);
+    if (loaded_locale.empty() &&
+        !parsed_command_line.HasSwitch(switches::kNoErrorDialogs)) {
+      // This error message is not localized because we failed to load the
+      // localization data files.
+      const char* message =
+          "Unable to find locale data files. Please reinstall.";
+      const char* title = "Missing File Error";
+      ShowMissingLocaleMessageBox(message, title);
+      return chrome::RESULT_CODE_MISSING_DATA;
+    }
     CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
     g_browser_process->SetApplicationLocale(loaded_locale);
 
     FilePath resources_pack_path;
     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
     ResourceBundle::AddDataPackToSharedInstance(resources_pack_path);
 #endif  // defined(OS_MACOSX)
   }
 
 #if defined(TOOLKIT_GTK)
@@ skipping 676 matching lines @@
 #if defined(OS_CHROMEOS)
   // To be precise, logout (browser shutdown) is not yet done, but the
   // remaining work is negligible, hence we say LogoutDone here.
   chromeos::BootTimesLoader::Get()->AddLogoutTimeMarker("LogoutDone",
                                                         false);
   chromeos::BootTimesLoader::Get()->WriteLogoutTimes();
 #endif
   TRACE_EVENT_END_ETW("BrowserMain", 0, 0);
   return result_code;
 }