detect preferences errors

chrome/browser/sync/glue/preference_model_associator.cc

Index: chrome/browser/sync/glue/preference_model_associator.cc
diff --git a/chrome/browser/sync/glue/preference_model_associator.cc b/chrome/browser/sync/glue/preference_model_associator.cc
index 169da24cdc5b36167101e85fe470d32223c0ff5b..5021b4bd4c107b2f5cdc93d8c60a27b82c72bd92 100644
--- a/chrome/browser/sync/glue/preference_model_associator.cc
+++ b/chrome/browser/sync/glue/preference_model_associator.cc
@@ -84,7 +84,7 @@ bool PreferenceModelAssociator::AssociateModels() {
       std::wstring pref_name = UTF8ToWide(preference.name());
       if (!value.get()) {
         LOG(ERROR) << "Failed to deserialize preference value: "
-                   << reader.error_message();
+                   << reader.GetErrorMessage();
         error_handler_->OnUnrecoverableError();
         return false;
       }