Make CUS interface more resilient by returning a copy of the data

chrome/browser/ui/webui/components_ui.cc

Index: chrome/browser/ui/webui/components_ui.cc
diff --git a/chrome/browser/ui/webui/components_ui.cc b/chrome/browser/ui/webui/components_ui.cc
index 43bc6cf3018c5a3448f54944b0596bcf3e16957a..e6207aea2248a6a694724a28ebe4ac6dfe06b63c 100644
--- a/chrome/browser/ui/webui/components_ui.cc
+++ b/chrome/browser/ui/webui/components_ui.cc
@@ -8,6 +8,7 @@
 #include <string>
 #include <vector>
 
+#include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/component_updater/component_updater_service.h"
@@ -168,7 +169,7 @@ base::ListValue* ComponentsUI::LoadComponents() {
   // Construct DictionaryValues to return to UI.
   base::ListValue* component_list = new base::ListValue();
   for (size_t j = 0; j < component_ids.size(); ++j) {
-    const component_updater::CrxUpdateItem* item =
+    const base::WeakPtr<component_updater::CrxUpdateItem> item =
         cus->GetComponentDetails(component_ids[j]);
     if (item) {
       base::DictionaryValue* component_entry = new base::DictionaryValue();