sync: only use RecordUnrecoverableError for legacy types.

chrome/browser/sync/glue/non_frontend_data_type_controller.h

Index: chrome/browser/sync/glue/non_frontend_data_type_controller.h
diff --git a/chrome/browser/sync/glue/non_frontend_data_type_controller.h b/chrome/browser/sync/glue/non_frontend_data_type_controller.h
index ac8ddcbf77df00c06657e3023d0544989bc6bc28..335310a2038bfccc642ada0fe69836585106d8b1 100644
--- a/chrome/browser/sync/glue/non_frontend_data_type_controller.h
+++ b/chrome/browser/sync/glue/non_frontend_data_type_controller.h
@@ -153,6 +153,13 @@ class NonFrontendDataTypeController : public DataTypeController {
   // Record causes of start failure. Called on UI thread.
   virtual void RecordStartFailure(StartResult result);
 
+  // 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);
+
   // Accessors and mutators used by derived classes.
   ProfileSyncComponentsFactory* profile_sync_factory() const;
   Profile* profile() const;