Only do DelegateExecute verb handler registration for Google Chrome.

chrome/installer/util/util_constants.h

 // 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.
 //
 // Defines all install related constants that need to be used by Chrome as
 // well as Chrome Installer.
 
 #ifndef CHROME_INSTALLER_UTIL_UTIL_CONSTANTS_H_
 #define CHROME_INSTALLER_UTIL_UTIL_CONSTANTS_H_
 #pragma once
@@ skipping 166 matching lines @@
 extern const wchar_t kChromeNewExe[];
 extern const wchar_t kCmdQuickEnableCf[];
 extern const wchar_t kDelegateExecuteExe[];
 extern const wchar_t kGoogleChromeInstallSubDir1[];
 extern const wchar_t kGoogleChromeInstallSubDir2[];
 extern const wchar_t kInstallBinaryDir[];
 extern const wchar_t kInstallerDir[];
 extern const wchar_t kInstallTempDir[];
 extern const wchar_t kInstallUserDataDir[];
 extern const wchar_t kNaClExe[];
+extern const wchar_t kPSOAInterfaceUuid[];
 extern const wchar_t kSetupExe[];
 extern const wchar_t kSxSSuffix[];
 extern const wchar_t kUninstallArgumentsField[];
 extern const wchar_t kUninstallDisplayNameField[];
 extern const wchar_t kUninstallInstallationDate[];
 extern const char kUninstallMetricsName[];
 extern const wchar_t kUninstallStringField[];
 
 // Google Update installer result API
 extern const wchar_t kInstallerError[];
@@ skipping 12 matching lines @@
 // Chrome channel display names.
 // NOTE: Canary is not strictly a 'channel', but rather a separate product
 //     installed side-by-side. However, GoogleUpdateSettings::GetChromeChannel
 //     will return "canary" for that product.
 extern const wchar_t kChromeChannelUnknown[];
 extern const wchar_t kChromeChannelCanary[];
 extern const wchar_t kChromeChannelDev[];
 extern const wchar_t kChromeChannelBeta[];
 extern const wchar_t kChromeChannelStable[];
 
-// Delegate Execute registration values.
-extern const wchar_t kCommandExecuteImplUuid[];
-extern const wchar_t kDelegateExecuteLib[];
-extern const wchar_t kDelegateExecuteLibUuid[];
-extern const wchar_t kDelegateExecuteLibVersion[];
-extern const wchar_t kICommandExecuteImpl[];
-extern const wchar_t kICommandExecuteImplUuid[];
-extern const wchar_t kPSOAInterfaceUuid[];
-
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_UTIL_UTIL_CONSTANTS_H_