Launch Google Update on uninstall.

chrome/installer/util/google_update_settings.cc

Index: chrome/installer/util/google_update_settings.cc
diff --git a/chrome/installer/util/google_update_settings.cc b/chrome/installer/util/google_update_settings.cc
index 13d61859721d415aff0adef7ce52c0b4657b4d9b..1278c76de77bd95dd9e1cb64e58baad65d6faa62 100644
--- a/chrome/installer/util/google_update_settings.cc
+++ b/chrome/installer/util/google_update_settings.cc
@@ -531,3 +531,16 @@ GoogleUpdateSettings::UpdatePolicy GoogleUpdateSettings::GetAppUpdatePolicy(
 
   return update_policy;
 }
+
+string16 GoogleUpdateSettings::GetUninstallCommandLine(bool system_install) {
+  const HKEY root_key = system_install ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
+  string16 cmd_line;
+  RegKey update_key;
+
+  if (update_key.Open(root_key, google_update::kRegPathGoogleUpdate,
+                      KEY_QUERY_VALUE) == ERROR_SUCCESS) {
+    update_key.ReadValue(google_update::kRegUninstallCmdLine, &cmd_line);
+  }
+
+  return cmd_line;
+}