Do not register Chrome's DelegateExecute on Win10+.

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 1290 matching lines @@
   HKEY root = installer_state.root_key();
   base::string16 delegate_execute_path(L"Software\\Classes\\CLSID\\");
   delegate_execute_path.append(handler_class_uuid);
 
   // Unconditionally remove registration regardless of whether or not it is
   // needed since builds after r132190 included it when it wasn't strictly
   // necessary.  Do this removal before adding in the new key to ensure that
   // the COM probe/flush below does its job.
   AddUninstallDelegateExecuteWorkItems(root, delegate_execute_path, list);
 
-  // Add work items to register the handler iff it is present.
-  // See also shell_util.cc's GetProgIdEntries.
+  // See also shell_util.cc's GetChromeProgIdEntries.
   if (installer_state.operation() != InstallerState::UNINSTALL) {
     VLOG(1) << "Adding registration items for DelegateExecute verb handler.";
 
     // Force COM to flush its cache containing the path to the old handler.
     list->AddCallbackWorkItem(base::Bind(&ProbeCommandExecuteCallback,
                                          handler_class_uuid));
 
     // The path to the exe (in the version directory).
     base::FilePath delegate_execute(target_path);
     if (new_version.IsValid())
@@ skipping 188 matching lines @@
   // Unconditionally remove the legacy Quick Enable command from the binaries.
   // Do this even if multi-install Chrome isn't installed to ensure that it is
   // not left behind in any case.
   work_item_list->AddDeleteRegKeyWorkItem(
                       installer_state.root_key(), cmd_key, KEY_WOW64_32KEY)
       ->set_log_message("removing " + base::UTF16ToASCII(kCmdQuickEnableCf) +
                         " command");
 }
 
 }  // namespace installer