Have component updater send a "wow64=1" parameter, to be able

chrome/browser/component_updater/component_updater_configurator.cc

 // Copyright (c) 2012 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/component_updater/component_updater_service.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
+#include "base/win/windows_version.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "net/url_request/url_request_context_getter.h"
 
 namespace {
 // Default time constants.
 const int kDelayOneMinute = 60;
 const int kDelayOneHour = kDelayOneMinute * 60;
 
@@ skipping 111 matching lines @@
   if (cmdline->HasSwitch(switches::kAppsGalleryUpdateURL)) {
     app_update_url_ =
         GURL(cmdline->GetSwitchValueASCII(switches::kAppsGalleryUpdateURL));
   } else {
     app_update_url_ = GURL("http://clients2.google.com/service/update2/crx");
   }
 
   // Make the extra request params, they are necessary so omaha does
   // not deliver components that are going to be rejected at install time.
   extra_info_ += chrome::VersionInfo().Version();
+#if defined(OS_WIN)
+  if (base::win::OSInfo::GetInstance()->wow64_status() ==
+      base::win::OSInfo::WOW64_ENABLED)
+    extra_info_ += "&wow64=1";
+#endif
   if (HasDebugValue(debug_values, kDebugRequestParam))
     extra_info_ += "&testrequest=1";
 }
 
 int ChromeConfigurator::InitialDelay() {
   return  fast_update_ ? 1 : (6 * kDelayOneMinute);
 }
 
 int ChromeConfigurator::NextCheckDelay() {
   return fast_update_ ? 3 : (1 * kDelayOneHour);
@@ skipping 50 matching lines @@
     default:
       NOTREACHED();
       break;
   }
 }
 
 ComponentUpdateService::Configurator* MakeChromeComponentUpdaterConfigurator(
     const CommandLine* cmdline, net::URLRequestContextGetter* context_getter) {
   return new ChromeConfigurator(cmdline, context_getter);
 }