Give SxS distribution its own registration GUIDs.

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 "base/win/windows_version.h"
@@ skipping 25 matching lines @@
 
 }  // namespace
 
 namespace installer {
 
 base::FilePath GetChromeInstallPath(bool system_install,
                                     BrowserDistribution* dist) {
   return GetChromeInstallBasePath(system_install, dist, kInstallBinaryDir);
 }
 
 void GetChromeUserDataPaths(BrowserDistribution* dist,

[gab, 2013/09/06 18:40:08]

I doubt we even need this method anymore... the Metro user-data-dir is a thing
of the past; we never even shipped it to stable AFAIK...?

cpu?

[grt (UTC plus 2), 2013/09/09 18:39:15]

Yes, this is history. I think it can be removed (in a separate CL).

                             std::vector<base::FilePath>* paths) {
-  const bool has_metro_data = dist->CanSetAsDefault() &&
+  const bool has_metro_data = dist->IsSetAsDefaultSupported() &&
       base::win::GetVersion() >= base::win::VERSION_WIN8;
   base::FilePath data_dir(GetChromeInstallBasePath(false, dist,
                                                    kInstallUserDataDir));
   if (data_dir.empty()) {
     paths->clear();
   } else {
     paths->resize(has_metro_data ? 2 : 1);
     (*paths)[0] = data_dir;
     if (has_metro_data) {
       (*paths)[1] = data_dir.DirName().Append(
@@ skipping 17 matching lines @@
   } else {
     return dist;
   }
 }
 
 std::wstring GetAppGuidForUpdates(bool system_install) {
   return GetBinariesDistribution(system_install)->GetAppGuid();
 }
 
 }  // namespace installer.