Only do DelegateExecute verb handler registration for Google Chrome.

chrome/installer/util/google_chrome_sxs_distribution.cc

Index: chrome/installer/util/google_chrome_sxs_distribution.cc
diff --git a/chrome/installer/util/google_chrome_sxs_distribution.cc b/chrome/installer/util/google_chrome_sxs_distribution.cc
index 883994d076376f727b0b64b4ef4682ef9da1d4d7..195ea69ff3a008532c27cc1299e37973119468f5 100644
--- a/chrome/installer/util/google_chrome_sxs_distribution.cc
+++ b/chrome/installer/util/google_chrome_sxs_distribution.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 //
@@ -62,6 +62,14 @@ bool GoogleChromeSxSDistribution::GetChromeChannel(std::wstring* channel) {
   return true;
 }
 
+bool GoogleChromeSxSDistribution::GetDelegateExecuteHandlerData(
+    string16* handler_class_uuid,
+    string16* type_lib_uuid,
+    string16* type_lib_version,
+    string16* interface_uuid) {
+  return false;
+}
+
 std::wstring GoogleChromeSxSDistribution::ChannelName() {
   return kChannelName;
 }