Remove ModelSafeWorker::work_done_or_stopped().

components/password_manager/sync/browser/password_model_worker.h

Index: components/password_manager/sync/browser/password_model_worker.h
diff --git a/components/password_manager/sync/browser/password_model_worker.h b/components/password_manager/sync/browser/password_model_worker.h
index 996f5bb9cb1696cf5dbe29dcddc5285c9b1c89b8..7543d7abc9e6f3c983b7744750555af058fa6f68 100644
--- a/components/password_manager/sync/browser/password_model_worker.h
+++ b/components/password_manager/sync/browser/password_model_worker.h
@@ -11,10 +11,6 @@
 #include "base/memory/ref_counted.h"
 #include "components/sync/engine/model_safe_worker.h"
 
-namespace base {
-class WaitableEvent;
-}
-
 namespace password_manager {
 class PasswordStore;
 }
@@ -42,10 +38,6 @@ class PasswordModelWorker : public syncer::ModelSafeWorker {
  private:
   ~PasswordModelWorker() override;
 
-  void CallDoWorkAndSignalTask(const syncer::WorkCallback& work,
-                               base::WaitableEvent* done,
-                               syncer::SyncerError* error);
-
   // Called on password thread to add PasswordModelWorker as destruction
   // observer.
   void RegisterForPasswordLoopDestruction();