Force COM machinery to notice that the path to the DelegateExecute verb handler has changed.

chrome/installer/util/work_item_list.cc

Index: chrome/installer/util/work_item_list.cc
diff --git a/chrome/installer/util/work_item_list.cc b/chrome/installer/util/work_item_list.cc
index f9808c0c511c319b8a678cfdd80a90a1310207be..3fd8dc6bd33d5f3397d80ca6d7ee4bdc4da129e3 100644
--- a/chrome/installer/util/work_item_list.cc
+++ b/chrome/installer/util/work_item_list.cc
@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "base/file_path.h"
 #include "chrome/installer/util/logging_installer.h"
+#include "chrome/installer/util/callback_work_item.h"
 #include "chrome/installer/util/copy_reg_key_work_item.h"
 #include "chrome/installer/util/copy_tree_work_item.h"
 #include "chrome/installer/util/create_dir_work_item.h"
@@ -73,6 +74,13 @@ void WorkItemList::AddWorkItem(WorkItem* work_item) {
   list_.push_back(work_item);
 }
 
+WorkItem* WorkItemList::AddCallbackWorkItem(
+    base::Callback<bool(const CallbackWorkItem&)> callback) {
+  WorkItem* item = WorkItem::CreateCallbackWorkItem(callback);
+  AddWorkItem(item);
+  return item;
+}
+
 WorkItem* WorkItemList::AddCopyRegKeyWorkItem(
     HKEY predefined_root,
     const std::wstring& source_key_path,