Add best-effort/allow rollback flags on WorkItem.

chrome/installer/util/installer_state.cc

Index: chrome/installer/util/installer_state.cc
diff --git a/chrome/installer/util/installer_state.cc b/chrome/installer/util/installer_state.cc
index 56b701d0c980140c025b8bda1de1a50cf7fceb3d..d9d9faec9c3ede960e42a8defd416493bc6a7f2e 100644
--- a/chrome/installer/util/installer_state.cc
+++ b/chrome/installer/util/installer_state.cc
@@ -671,8 +671,10 @@ void InstallerState::WriteInstallerResult(
     int string_resource_id,
     const std::wstring* const launch_cmd) const {
   // Use a no-rollback list since this is a best-effort deal.
-  std::unique_ptr<WorkItemList> install_list(
-      WorkItem::CreateNoRollbackWorkItemList());
+  std::unique_ptr<WorkItemList> install_list(WorkItem::CreateWorkItemList());
+  install_list->set_log_message("Write Installer Result");
+  install_list->set_best_effort(true);
+  install_list->set_rollback_enabled(false);
   const bool system_install = this->system_install();
   // Write the value for all products upon which we're operating.
   Products::const_iterator end = products().end();
@@ -688,8 +690,7 @@ void InstallerState::WriteInstallerResult(
         system_install, multi_package_binaries_distribution()->GetStateKey(),
         status, string_resource_id, launch_cmd, install_list.get());
   }
-  if (!install_list->Do())
-    LOG(ERROR) << "Failed to record installer error information in registry.";
+  install_list->Do();
 }
 
 bool InstallerState::RequiresActiveSetup() const {