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

chrome/installer/util/installation_state.cc

Index: chrome/installer/util/installation_state.cc
===================================================================
--- chrome/installer/util/installation_state.cc	(revision 273136)
+++ chrome/installer/util/installation_state.cc	(working copy)
@@ -36,8 +36,7 @@
 // static
 bool ProductState::InitializeCommands(const base::win::RegKey& version_key,
                                       AppCommands* commands) {
-  static const DWORD kAccess =
-      KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE | KEY_WOW64_32KEY;
+  static const DWORD kAccess = KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE;
   base::win::RegKey commands_key;
 
   if (commands_key.Open(version_key.Handle(), google_update::kRegCommandsKey,
@@ -48,7 +47,6 @@
 
 bool ProductState::Initialize(bool system_install,
                               BrowserDistribution* distribution) {
-  static const DWORD kAccess = KEY_QUERY_VALUE | KEY_WOW64_32KEY;
   const std::wstring version_key(distribution->GetVersionKey());
   const std::wstring state_key(distribution->GetStateKey());
   const HKEY root_key = system_install ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
@@ -58,7 +56,8 @@
   Clear();
 
   // Read from the Clients key.
-  if (key.Open(root_key, version_key.c_str(), kAccess) == ERROR_SUCCESS) {
+  if (key.Open(root_key, version_key.c_str(),
+               KEY_QUERY_VALUE) == ERROR_SUCCESS) {
     base::string16 version_str;
     if (key.ReadValue(google_update::kRegVersionField,
                       &version_str) == ERROR_SUCCESS) {
@@ -83,7 +82,8 @@
   }
 
   // Read from the ClientState key.
-  if (key.Open(root_key, state_key.c_str(), kAccess) == ERROR_SUCCESS) {
+  if (key.Open(root_key, state_key.c_str(),
+               KEY_QUERY_VALUE) == ERROR_SUCCESS) {
     std::wstring setup_path;
     std::wstring uninstall_arguments;
     // "ap" will be absent if not managed by Google Update.
@@ -124,8 +124,8 @@
   // Read from the ClientStateMedium key.  Values here override those in
   // ClientState.
   if (system_install &&
-      key.Open(root_key, distribution->GetStateMediumKey().c_str(), kAccess) ==
-          ERROR_SUCCESS) {
+      key.Open(root_key, distribution->GetStateMediumKey().c_str(),
+               KEY_QUERY_VALUE) == ERROR_SUCCESS) {
     DWORD dword_value = 0;
 
     if (key.ReadValueDW(google_update::kRegUsageStatsField,