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

chrome/installer/util/work_item_list.h

Index: chrome/installer/util/work_item_list.h
diff --git a/chrome/installer/util/work_item_list.h b/chrome/installer/util/work_item_list.h
index 5f50fe45b43fa060912709633863adc016b9042e..f350f39160b4008e44a87f5f31fbd111f65cbe48 100644
--- a/chrome/installer/util/work_item_list.h
+++ b/chrome/installer/util/work_item_list.h
@@ -11,6 +11,7 @@
 #include <string>
 #include <vector>
 
+#include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/installer/util/work_item.h"
 
@@ -36,6 +37,10 @@ class WorkItemList : public WorkItem {
   // Once a WorkItem is added to the list. The list owns the WorkItem.
   virtual void AddWorkItem(WorkItem* work_item);
 
+  // Add a CallbackWorkItem that invokes a callback.
+  virtual WorkItem* AddCallbackWorkItem(
+      base::Callback<bool(const CallbackWorkItem&)> callback);
+
   // Add a CopyRegKeyWorkItem that recursively copies a given registry key.
   virtual WorkItem* AddCopyRegKeyWorkItem(HKEY predefined_root,
                                           const std::wstring& source_key_path,