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

chrome/browser/safe_browsing/incident_reporting/environment_data_collection_win.cc

 // Copyright 2014 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/browser/safe_browsing/incident_reporting/environment_data_collection_win.h"
 
 #include <windows.h>
 #include <set>
 
 #include "base/i18n/case_conversion.h"
@@ skipping 84 matching lines @@
       process->mutable_dll(i)
           ->add_feature(ClientIncidentReport_EnvironmentData_Process_Dll::LSP);
     }
   }
 }
 
 void CollectDllBlacklistData(
     ClientIncidentReport_EnvironmentData_Process* process) {
   PathSanitizer path_sanitizer;
   base::win::RegistryValueIterator iter(HKEY_CURRENT_USER,
-                                        blacklist::kRegistryFinchListPath);
+                                        blacklist::kRegistryFinchListPath,
+                                        0);  // wow64_access
   for (; iter.Valid(); ++iter) {
     base::FilePath dll_name(iter.Value());
     path_sanitizer.StripHomeDirectory(&dll_name);
     process->add_blacklisted_dll(dll_name.AsUTF8Unsafe());
   }
 }
 
 void CollectModuleVerificationData(
     const wchar_t* const modules_to_verify[],
     size_t num_modules_to_verify,
@@ skipping 26 matching lines @@
 void CollectPlatformProcessData(
     ClientIncidentReport_EnvironmentData_Process* process) {
   CollectDlls(process);
   RecordLspFeature(process);
   CollectDllBlacklistData(process);
   CollectModuleVerificationData(
       kModulesToVerify, arraysize(kModulesToVerify), process);
 }
 
 }  // namespace safe_browsing