Allow Registry Iterator functions to use a specified WOW64 mode when iterating.

chrome/installer/util/app_commands.cc

Index: chrome/installer/util/app_commands.cc
diff --git a/chrome/installer/util/app_commands.cc b/chrome/installer/util/app_commands.cc
index de7dcc266ebbb4a414f11c01b1c9f622bc1aaedd..cb6f617dfde580c3ad78924226fd0b2343479f1c 100644
--- a/chrome/installer/util/app_commands.cc
+++ b/chrome/installer/util/app_commands.cc
@@ -19,12 +19,18 @@ AppCommands::AppCommands() {
 AppCommands::~AppCommands() {
 }
 
-bool AppCommands::Initialize(const base::win::RegKey& key) {
+bool AppCommands::Initialize(const base::win::RegKey& key, REGSAM wow64access) {
   if (!key.Valid()) {
     LOG(DFATAL) << "Cannot initialize AppCommands from an invalid key.";
     return false;
   }
 
+  if (wow64access != 0 && wow64access != KEY_WOW64_32KEY &&
+      wow64access != KEY_WOW64_64KEY) {
+    LOG(DFATAL) << "Invalid wow64access supplied to AppCommands.";
+    return false;
+  }
+
   using base::win::RegistryKeyIterator;
   static const wchar_t kEmptyString[] = L"";
 
@@ -33,8 +39,10 @@ bool AppCommands::Initialize(const base::win::RegKey& key) {
   RegKey cmd_key;
   LONG result;
   AppCommand command;
-  for (RegistryKeyIterator key_iterator(key.Handle(), kEmptyString);
-       key_iterator.Valid(); ++key_iterator) {
+  for (RegistryKeyIterator key_iterator(
+           key.Handle(), kEmptyString, wow64access);
+       key_iterator.Valid();
+       ++key_iterator) {
     const wchar_t* name = key_iterator.Name();
     result = cmd_key.Open(key.Handle(), name, KEY_QUERY_VALUE);
     if (result != ERROR_SUCCESS) {