Make omaha, gcapi and uninstall registry accesses use Wow6432Node on 64-bit

chrome/installer/util/helper.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/installer/util/helper.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/install_util.h"
 #include "chrome/installer/util/installation_state.h"
 #include "chrome/installer/util/util_constants.h"
 
 namespace installer {
 
 base::FilePath GetChromeInstallPath(bool system_install,
                                     BrowserDistribution* dist) {
   base::FilePath install_path;
+#if defined(_WIN64)
+  // TODO(wfh): Place Chrome binaries into DIR_PROGRAM_FILESX86 until the code
+  // to support moving the binaries is added.
+  int key =
+      system_install ? base::DIR_PROGRAM_FILESX86 : base::DIR_LOCAL_APP_DATA;
+#else
   int key = system_install ? base::DIR_PROGRAM_FILES : base::DIR_LOCAL_APP_DATA;
+#endif
   if (PathService::Get(key, &install_path)) {
     install_path = install_path.Append(dist->GetInstallSubDir());
     install_path = install_path.Append(kInstallBinaryDir);
   }
   return install_path;
 }
 
 BrowserDistribution* GetBinariesDistribution(bool system_install) {
   BrowserDistribution* dist = BrowserDistribution::GetDistribution();
   ProductState state;
 
   // If we're part of a multi-install, we need to poll using the multi-installer
   // package's app guid rather than the browser's or Chrome Frame's app guid.
   // If we can't read the app's state from the registry, assume it isn't
   // multi-installed.
   if (state.Initialize(system_install, dist) && state.is_multi_install()) {
     return BrowserDistribution::GetSpecificDistribution(
         BrowserDistribution::CHROME_BINARIES);
   } else {
     return dist;
   }
 }
 
 std::wstring GetAppGuidForUpdates(bool system_install) {
   return GetBinariesDistribution(system_install)->GetAppGuid();
 }
 
 }  // namespace installer.