sync: only use RecordUnrecoverableError for legacy types.

chrome/browser/sync/glue/frontend_data_type_controller.h

Index: chrome/browser/sync/glue/frontend_data_type_controller.h
diff --git a/chrome/browser/sync/glue/frontend_data_type_controller.h b/chrome/browser/sync/glue/frontend_data_type_controller.h
index b7fb351071d4e1cd882df8cdfa30e3a612514596..f71b76e559055830bfe2cf4bd0d64ef30a207a28 100644
--- a/chrome/browser/sync/glue/frontend_data_type_controller.h
+++ b/chrome/browser/sync/glue/frontend_data_type_controller.h
@@ -105,6 +105,13 @@ class FrontendDataTypeController : public DataTypeController {
   virtual ChangeProcessor* GetChangeProcessor() const OVERRIDE;
   virtual void set_change_processor(ChangeProcessor* processor);
 
+  // Handles the reporting of unrecoverable error. It records stuff in
+  // UMA and reports to breakpad.
+  // Virtual for testing purpose.
+  virtual void RecordUnrecoverableError(
+      const tracked_objects::Location& from_here,
+      const std::string& message);
+
   ProfileSyncComponentsFactory* const profile_sync_factory_;
   Profile* const profile_;
   ProfileSyncService* const sync_service_;