Give SxS distribution its own registration GUIDs.

chrome/installer/setup/install_worker.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.
 //
 // This file contains the definitions of the installer functions that build
 // the WorkItemList used to install the application.
 
 #include "chrome/installer/setup/install_worker.h"
 
 #include <oaidl.h>
@@ skipping 1417 matching lines @@
   }
 }
 
 void AddDelegateExecuteWorkItems(const InstallerState& installer_state,
                                  const base::FilePath& target_path,
                                  const Version& new_version,
                                  const Product& product,
                                  WorkItemList* list) {
   string16 handler_class_uuid;
   BrowserDistribution* dist = product.distribution();
-  if (!dist->GetCommandExecuteImplClsid(&handler_class_uuid)) {
+  if (!dist->GetCommandExecuteImplClsidString(&handler_class_uuid)) {
     if (InstallUtil::IsChromeSxSProcess()) {
       CleanupBadCanaryDelegateExecuteRegistration(target_path, list);
     } else {
       VLOG(1) << "No DelegateExecute verb handler processing to do for "
               << dist->GetDisplayName();
     }
     return;
   }
 
   HKEY root = installer_state.root_key();
@@ skipping 263 matching lines @@
     if (installer_state.system_install())
       cmd_line.AppendSwitch(switches::kSystemLevel);
     AppCommand cmd(cmd_line.GetCommandLineString());
     cmd.set_sends_pings(true);
     cmd.set_is_web_accessible(true);
     cmd.AddWorkItems(installer_state.root_key(), cmd_key, work_item_list);
   }
 }
 
 }  // namespace installer