Correct const accessors in base/values.(h|cc), Part II (ListValue)

tools/json_schema_compiler/util.cc

Index: tools/json_schema_compiler/util.cc
diff --git a/tools/json_schema_compiler/util.cc b/tools/json_schema_compiler/util.cc
index 9d8abd5cdab51e75e72ce5e9dc54089e8109d1fa..ca5c25ab8289d52763c8e21046e9b87b717aba2a 100644
--- a/tools/json_schema_compiler/util.cc
+++ b/tools/json_schema_compiler/util.cc
@@ -28,7 +28,7 @@ bool GetItemFromList(const ListValue& from, int index, std::string* out) {
 
 bool GetItemFromList(const ListValue& from, int index,
     linked_ptr<any::Any>* out) {
-  Value* value = NULL;
+  const Value* value = NULL;
   if (!from.Get(index, &value))
     return false;
   scoped_ptr<any::Any> any_object(new any::Any());
@@ -39,7 +39,7 @@ bool GetItemFromList(const ListValue& from, int index,
 
 bool GetItemFromList(const ListValue& from, int index,
     linked_ptr<base::DictionaryValue>* out) {
-  DictionaryValue* dict = NULL;
+  const DictionaryValue* dict = NULL;
   if (!from.GetDictionary(index, &dict))
     return false;
   *out = linked_ptr<DictionaryValue>(dict->DeepCopy());