Allow two user level installs of Chrome to have default browser settings.

chrome/installer/util/util_constants.cc

 // Copyright (c) 2006-2009 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/installer/util/util_constants.h"
 
 namespace installer_util {
 
 namespace switches {
 
@@ skipping 39 matching lines @@
 
 // Useful only when used with --update-setup-exe, otherwise ignored. It
 // specifies the full path where updated setup.exe will be stored.
 const wchar_t kNewSetupExe[] = L"new-setup-exe";
 
 // Register Chrome as a valid browser on the current sytem. This option
 // requires that setup.exe is running as admin. If this option is specified,
 // options kInstallArchive and kUninstall are ignored.
 const wchar_t kRegisterChromeBrowser[] = L"register-chrome-browser";
 
+const wchar_t kRegisterChromeBrowserSuffix[] =
+    L"register-chrome-browser-suffix";
+
 // Renames chrome.exe to old_chrome.exe and renames new_chrome.exe to chrome.exe
 // to support in-use updates. Also deletes opv key.
 const wchar_t kRenameChromeExe[] = L"rename-chrome-exe";
 
 // Removes Chrome registration from current machine. Requires admin rights.
 const wchar_t kRemoveChromeRegistration[] = L"remove-chrome-registration";
 
 // When we try to relaunch setup.exe as admin on Vista, we append this command
 // line flag so that we try the launch only once.
 const wchar_t kRunAsAdmin[] = L"run-as-admin";
@@ skipping 30 matching lines @@
 const wchar_t kChromeNewExe[] = L"new_chrome.exe";
 const wchar_t kChromeDll[] = L"chrome.dll";
 const wchar_t kSetupExe[] = L"setup.exe";
 const wchar_t kInstallerDir[] = L"Installer";
 
 const wchar_t kUninstallStringField[] = L"UninstallString";
 const wchar_t kUninstallDisplayNameField[] = L"DisplayName";
 const wchar_t kUninstallMetricsName[] = L"uninstall_metrics";
 const wchar_t kUninstallInstallationDate[] = L"installation_date";
 }  // namespace installer_util