Write the install language to the registry for user-level installs.

chrome/installer/setup/install_worker.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.
 //
 // This file contains the definitions of the installer functions that build
 // the WorkItemList used to install the application.
 
 #include "chrome/installer/setup/install_worker.h"
 
 #include <shlobj.h>
@@ skipping 12 matching lines @@
 #include "chrome/common/chrome_constants.h"
 #include "chrome/installer/setup/install.h"
 #include "chrome/installer/setup/setup_constants.h"
 #include "chrome/installer/util/conditional_work_item_list.h"
 #include "chrome/installer/util/create_reg_key_work_item.h"
 #include "chrome/installer/util/google_update_constants.h"
 #include "chrome/installer/util/helper.h"
 #include "chrome/installer/util/installation_state.h"
 #include "chrome/installer/util/installer_state.h"
 #include "chrome/installer/util/install_util.h"
+#include "chrome/installer/util/l10n_string_util.h"
 #include "chrome/installer/util/product.h"
 #include "chrome/installer/util/set_reg_value_work_item.h"
 #include "chrome/installer/util/shell_util.h"
 #include "chrome/installer/util/util_constants.h"
 #include "chrome/installer/util/work_item_list.h"
 #include "chrome_frame/chrome_tab.h"
 
 using base::win::RegKey;
 
 namespace installer {
@@ skipping 189 matching lines @@
   install_list->AddCreateRegKeyWorkItem(reg_root, binaries_state_key);
   install_list->AddSetRegValueWorkItem(reg_root, binaries_state_key,
       installer::kUninstallStringField, installer_path.value(), true);
 }
 
 // Create Version key for a product (if not already present) and sets the new
 // product version as the last step.
 void AddVersionKeyWorkItems(HKEY root,
                             BrowserDistribution* dist,
                             const Version& new_version,
+                            bool add_language_identifier,
                             WorkItemList* list) {
   // Create Version key for each distribution (if not already present) and set
   // the new product version as the last step.
   std::wstring version_key(dist->GetVersionKey());
   list->AddCreateRegKeyWorkItem(root, version_key);
 
   std::wstring product_name(dist->GetAppShortCutName());
   list->AddSetRegValueWorkItem(root, version_key, google_update::kRegNameField,
                                product_name, true);  // overwrite name also
   list->AddSetRegValueWorkItem(root, version_key,
                                google_update::kRegOopcrashesField,
                                static_cast<DWORD>(1),
                                false);  // set during first install
+  if (add_language_identifier) {
+    // Write the language identifier of the current translation.  Omaha's set of
+    // languages is a superset of Chrome's set of translations with this one
+    // exception: what Chrome calls "en-us", Omaha calls "en".  sigh.
+    std::wstring language(GetCurrentTranslation());
+    if (LowerCaseEqualsASCII(language, "en-us"))
+      language.resize(2);
+    list->AddSetRegValueWorkItem(root, version_key,
+                                 google_update::kRegLangField, language,
+                                 false);  // do not overwrite language
+  }
   list->AddSetRegValueWorkItem(root, version_key,
                                google_update::kRegVersionField,
                                ASCIIToWide(new_version.GetString()),
                                true);  // overwrite version
 }
 
 void AddProductSpecificWorkItems(const InstallationState& original_state,
                                  const InstallerState& installer_state,
                                  const FilePath& setup_path,
                                  const Version& new_version,
@@ skipping 510 matching lines @@
   install_list->AddDeleteTreeWorkItem(
       target_path.Append(installer::kChromeOldExe), temp_path)
       ->set_ignore_failure(true);
 
   // Copy installer in install directory and
   // add shortcut in Control Panel->Add/Remove Programs.
   AddInstallerCopyTasks(installer_state, setup_path, archive_path, temp_path,
                         new_version, install_list);
 
   const HKEY root = installer_state.root_key();
+  // Only set "lang" for user-level installs since for system-level, the install
+  // language may not be related to a given user's runtime language.
+  const bool add_language_identifier = !installer_state.system_install();
 
   const Products& products = installer_state.products();
   for (size_t i = 0; i < products.size(); ++i) {
     const Product* product = products[i];
 
     AddUninstallShortcutWorkItems(installer_state, setup_path, new_version,
                                   install_list, *product);
 
     AddVersionKeyWorkItems(root, product->distribution(), new_version,
-                           install_list);
+                           add_language_identifier, install_list);
   }
 
   if (installer_state.is_multi_install()) {
     AddMultiUninstallWorkItems(installer_state, setup_path, new_version,
                                install_list);
 
     AddVersionKeyWorkItems(root,
         installer_state.multi_package_binaries_distribution(), new_version,
-        install_list);
+        add_language_identifier, install_list);
   }
 
   // Add any remaining work items that involve special settings for
   // each product.
   AddProductSpecificWorkItems(original_state, installer_state, setup_path,
                               new_version, install_list);
 
   // Copy over brand, usagestats, and other values.
   AddGoogleUpdateWorkItems(original_state, installer_state, install_list);
 
@@ skipping 423 matching lines @@
     } else {
       DCHECK(operation == REMOVE_COMMAND);
       work_item_list->AddDeleteRegKeyWorkItem(installer_state.root_key(),
                                               cmd_key)->set_log_message(
           "removing quick-enable-cf command");
     }
   }
 }
 
 }  // namespace installer