Revert 273108 "Omaha configuration parameters now use Wow6432Nod..."

chrome/installer/setup/setup_main.cc

Index: chrome/installer/setup/setup_main.cc
===================================================================
--- chrome/installer/setup/setup_main.cc	(revision 273136)
+++ chrome/installer/setup/setup_main.cc	(working copy)
@@ -263,19 +263,15 @@
   for (Products::const_iterator it = products.begin(); it < products.end();
        ++it) {
     version_key = (*it)->distribution()->GetVersionKey();
-    install_list->AddDeleteRegValueWorkItem(reg_root,
-                                            version_key,
-                                            KEY_WOW64_32KEY,
-                                            google_update::kRegOldVersionField);
     install_list->AddDeleteRegValueWorkItem(
-        reg_root,
-        version_key,
-        KEY_WOW64_32KEY,
+        reg_root, version_key, WorkItem::kWow64Default,
+        google_update::kRegOldVersionField);
+    install_list->AddDeleteRegValueWorkItem(
+        reg_root, version_key, WorkItem::kWow64Default,
         google_update::kRegCriticalVersionField);
-    install_list->AddDeleteRegValueWorkItem(reg_root,
-                                            version_key,
-                                            KEY_WOW64_32KEY,
-                                            google_update::kRegRenameCmdField);
+    install_list->AddDeleteRegValueWorkItem(
+        reg_root, version_key, WorkItem::kWow64Default,
+        google_update::kRegRenameCmdField);
   }
   installer::InstallStatus ret = installer::RENAME_SUCCESSFUL;
   if (!install_list->Do()) {