Revert of Change base::Value::ListStorage to std::vector<base::Value>

chrome/browser/plugins/plugin_prefs.cc

Index: chrome/browser/plugins/plugin_prefs.cc
diff --git a/chrome/browser/plugins/plugin_prefs.cc b/chrome/browser/plugins/plugin_prefs.cc
index 0c418d1cdd0cbc649bcdff0d001ad39740ade5db..3f8c20c06bc9fdcc0df547aa999e67ff7522c7a5 100644
--- a/chrome/browser/plugins/plugin_prefs.cc
+++ b/chrome/browser/plugins/plugin_prefs.cc
@@ -129,9 +129,9 @@
     ListPrefUpdate update(prefs_, prefs::kPluginsPluginsList);
     base::ListValue* saved_plugins_list = update.Get();
     if (saved_plugins_list && !saved_plugins_list->empty()) {
-      for (auto& plugin_value : *saved_plugins_list) {
+      for (const auto& plugin_value : *saved_plugins_list) {
         base::DictionaryValue* plugin;
-        if (!plugin_value.GetAsDictionary(&plugin)) {
+        if (!plugin_value->GetAsDictionary(&plugin)) {
           LOG(WARNING) << "Invalid entry in " << prefs::kPluginsPluginsList;
           continue;  // Oops, don't know what to do with this item.
         }