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

chrome/browser/metrics/plugin_metrics_provider.cc

Index: chrome/browser/metrics/plugin_metrics_provider.cc
diff --git a/chrome/browser/metrics/plugin_metrics_provider.cc b/chrome/browser/metrics/plugin_metrics_provider.cc
index aaa2f5fc9ab25b16e376c87e1c096a19d586b514..ebd235a596b0df345df8e5b786581d3058f8c793 100644
--- a/chrome/browser/metrics/plugin_metrics_provider.cc
+++ b/chrome/browser/metrics/plugin_metrics_provider.cc
@@ -144,8 +144,8 @@
   metrics::SystemProfileProto::Stability* stability =
       system_profile_proto->mutable_stability();
   for (const auto& value : *plugin_stats_list) {
-    const base::DictionaryValue* plugin_dict;
-    if (!value.GetAsDictionary(&plugin_dict)) {
+    base::DictionaryValue* plugin_dict;
+    if (!value->GetAsDictionary(&plugin_dict)) {
       NOTREACHED();
       continue;
     }
@@ -210,9 +210,9 @@
   base::ListValue* plugins = update.Get();
   DCHECK(plugins);
 
-  for (auto& value : *plugins) {
+  for (const auto& value : *plugins) {
     base::DictionaryValue* plugin_dict;
-    if (!value.GetAsDictionary(&plugin_dict)) {
+    if (!value->GetAsDictionary(&plugin_dict)) {
       NOTREACHED();
       continue;
     }