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

chrome/browser/ui/webui/settings/certificates_handler.cc

Index: chrome/browser/ui/webui/settings/certificates_handler.cc
diff --git a/chrome/browser/ui/webui/settings/certificates_handler.cc b/chrome/browser/ui/webui/settings/certificates_handler.cc
index d80b14b987706f3e31fc202c966e237012594c7c..9930c7b9bc9ca67a79b9efd091f6193807261e89 100644
--- a/chrome/browser/ui/webui/settings/certificates_handler.cc
+++ b/chrome/browser/ui/webui/settings/certificates_handler.cc
@@ -85,14 +85,15 @@
   explicit DictionaryIdComparator(icu::Collator* collator)
       : collator_(collator) {}
 
-  bool operator()(const base::Value& a, const base::Value& b) const {
-    DCHECK(a.GetType() == base::Value::Type::DICTIONARY);
-    DCHECK(b.GetType() == base::Value::Type::DICTIONARY);
+  bool operator()(const std::unique_ptr<base::Value>& a,
+                  const std::unique_ptr<base::Value>& b) const {
+    DCHECK(a->GetType() == base::Value::Type::DICTIONARY);
+    DCHECK(b->GetType() == base::Value::Type::DICTIONARY);
     const base::DictionaryValue* a_dict;
-    bool a_is_dictionary = a.GetAsDictionary(&a_dict);
+    bool a_is_dictionary = a->GetAsDictionary(&a_dict);
     DCHECK(a_is_dictionary);
     const base::DictionaryValue* b_dict;
-    bool b_is_dictionary = b.GetAsDictionary(&b_dict);
+    bool b_is_dictionary = b->GetAsDictionary(&b_dict);
     DCHECK(b_is_dictionary);
     base::string16 a_str;
     base::string16 b_str;