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

ash/display/json_converter.cc

Index: ash/display/json_converter.cc
diff --git a/ash/display/json_converter.cc b/ash/display/json_converter.cc
index 943eeb44a358e90ceb5b79b34c863aa592d4ea2b..7b066faa5e167c134f67b4b540e1a1f4896d1c2e 100644
--- a/ash/display/json_converter.cc
+++ b/ash/display/json_converter.cc
@@ -126,7 +126,7 @@ bool UpdateFromDict(const base::DictionaryValue* dict_value,
   output->reserve(list->GetSize());
   for (const auto& list_item : *list) {
     const base::DictionaryValue* item_values = nullptr;
-    if (!list_item->GetAsDictionary(&item_values))
+    if (!list_item.GetAsDictionary(&item_values))
       return false;
 
     display::DisplayPlacement item;