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

chrome/browser/bookmarks/bookmark_codec.cc

Index: chrome/browser/bookmarks/bookmark_codec.cc
diff --git a/chrome/browser/bookmarks/bookmark_codec.cc b/chrome/browser/bookmarks/bookmark_codec.cc
index 6eff50ae819bebf592908814a39d810252d05504..d153418c4aaa662f70f7d875604b92818ad9602e 100644
--- a/chrome/browser/bookmarks/bookmark_codec.cc
+++ b/chrome/browser/bookmarks/bookmark_codec.cc
@@ -203,14 +203,14 @@ bool BookmarkCodec::DecodeHelper(BookmarkNode* bb_node,
 bool BookmarkCodec::DecodeChildren(const ListValue& child_value_list,
                                    BookmarkNode* parent) {
   for (size_t i = 0; i < child_value_list.GetSize(); ++i) {
-    Value* child_value;
+    const Value* child_value;
     if (!child_value_list.Get(i, &child_value))
       return false;
 
     if (child_value->GetType() != Value::TYPE_DICTIONARY)
       return false;
 
-    DecodeNode(*static_cast<DictionaryValue*>(child_value), parent, NULL);
+    DecodeNode(*static_cast<const DictionaryValue*>(child_value), parent, NULL);
   }
   return true;
 }