detect preferences errors

chrome/browser/sync/glue/preference_model_associator.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/sync/glue/preference_model_associator.h"
 
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "base/utf_string_conversions.h"
@@ skipping 66 matching lines @@
     if (node.InitByClientTagLookup(syncable::PREFERENCES, tag)) {
       const sync_pb::PreferenceSpecifics& preference(
           node.GetPreferenceSpecifics());
       DCHECK_EQ(tag, preference.name());
 
       scoped_ptr<Value> value(
           reader.JsonToValue(preference.value(), false, false));
       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;
       }
 
       // Update the local preference based on what we got from the sync server.
       pref_service->Set(pref_name.c_str(), *value);
       Associate(pref, node.GetId());
     } else {
       sync_api::WriteNode node(&trans);
       if (!node.InitUniqueByCreation(syncable::PREFERENCES, root, tag)) {
@@ skipping 91 matching lines @@
   sync_api::ReadTransaction trans(
       sync_service_->backend()->GetUserShareHandle());
   sync_api::ReadNode sync_node(&trans);
   if (!sync_node.InitByTagLookup(tag.c_str()))
     return false;
   *sync_id = sync_node.GetId();
   return true;
 }
 
 }  // namespace browser_sync