Add return values to SyncerCommand

chrome/browser/sync/engine/passive_model_worker.h

Index: chrome/browser/sync/engine/passive_model_worker.h
diff --git a/chrome/browser/sync/engine/passive_model_worker.h b/chrome/browser/sync/engine/passive_model_worker.h
index 7574380178381e0d74c5d9f6524f9e02ed88075d..f2c011b46cc02ee83aef98663b5037c58f2a17af 100644
--- a/chrome/browser/sync/engine/passive_model_worker.h
+++ b/chrome/browser/sync/engine/passive_model_worker.h
@@ -9,6 +9,7 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/sync/engine/model_safe_worker.h"
+#include "chrome/browser/sync/engine/syncer_error.h"
 
 class MessageLoop;
 
@@ -22,7 +23,7 @@ class PassiveModelWorker : public ModelSafeWorker {
   explicit PassiveModelWorker(const MessageLoop* sync_loop);
 
   // ModelSafeWorker implementation. Called on the sync thread.
-  virtual UnrecoverableErrorInfo DoWorkAndWaitUntilDone(
+  virtual SyncerError DoWorkAndWaitUntilDone(
       const WorkCallback& work) OVERRIDE;
   virtual ModelSafeGroup GetModelSafeGroup() OVERRIDE;