Adds option for JSON reader to allow invalid utf characters

components/policy/core/common/config_dir_policy_loader.cc

Index: components/policy/core/common/config_dir_policy_loader.cc
diff --git a/components/policy/core/common/config_dir_policy_loader.cc b/components/policy/core/common/config_dir_policy_loader.cc
index 76f9763ed9d73d6108a86500c42ab9a44063f97c..b58a0bc14b54093bb37ab93bd15f41c41eef5e22 100644
--- a/components/policy/core/common/config_dir_policy_loader.cc
+++ b/components/policy/core/common/config_dir_policy_loader.cc
@@ -142,8 +142,8 @@ void ConfigDirPolicyLoader::LoadFromPath(const base::FilePath& path,
   for (std::set<base::FilePath>::reverse_iterator config_file_iter =
            files.rbegin(); config_file_iter != files.rend();
        ++config_file_iter) {
-    JSONFileValueDeserializer deserializer(*config_file_iter);
-    deserializer.set_allow_trailing_comma(true);
+    JSONFileValueDeserializer deserializer(*config_file_iter,
+                                           base::JSON_ALLOW_TRAILING_COMMAS);
     int error_code = 0;
     std::string error_msg;
     std::unique_ptr<base::Value> value =