Split ValueSerializer into separate Serializer and Deserializer classes.

chrome/browser/supervised_user/supervised_user_site_list.cc

Index: chrome/browser/supervised_user/supervised_user_site_list.cc
diff --git a/chrome/browser/supervised_user/supervised_user_site_list.cc b/chrome/browser/supervised_user/supervised_user_site_list.cc
index 9203e7690c92a50a4ededdaf71364d70a106acc1..fa7690e553f049958e796a862f7e22c910e5fb16 100644
--- a/chrome/browser/supervised_user/supervised_user_site_list.cc
+++ b/chrome/browser/supervised_user/supervised_user_site_list.cc
@@ -142,9 +142,9 @@ void SupervisedUserSiteList::ParseJson(
     const SupervisedUserSiteList::LoadedCallback& callback,
     const std::string& json) {
   if (g_load_in_process) {
-    JSONFileValueSerializer serializer(path);
+    JSONFileValueDeserializer deserializer(path);
     std::string error;
-    scoped_ptr<base::Value> value(serializer.Deserialize(nullptr, &error));
+    scoped_ptr<base::Value> value(deserializer.Deserialize(nullptr, &error));
     if (!value) {
       HandleError(path, error);
       return;