[Sync] Add SyncEncryptionHandler

chrome/browser/sync/glue/sync_backend_host.h

Index: chrome/browser/sync/glue/sync_backend_host.h
diff --git a/chrome/browser/sync/glue/sync_backend_host.h b/chrome/browser/sync/glue/sync_backend_host.h
index bafe1402f07628a69c6ba5e6ba88ab556163d912..08637b344b85221eb74b2f4c7adba008a7c7e2c0 100644
--- a/chrome/browser/sync/glue/sync_backend_host.h
+++ b/chrome/browser/sync/glue/sync_backend_host.h
@@ -22,6 +22,7 @@
 #include "sync/internal_api/public/configure_reason.h"
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 #include "sync/internal_api/public/sessions/sync_session_snapshot.h"
+#include "sync/internal_api/public/sync_encryption_handler.h"
 #include "sync/internal_api/public/sync_manager.h"
 #include "sync/internal_api/public/util/report_unrecoverable_error_function.h"
 #include "sync/internal_api/public/util/unrecoverable_error_handler.h"
@@ -477,7 +478,7 @@ class SyncBackendHost : public BackendDataTypeConfigurer {
 
   // Must be called on |frontend_loop_|.  |done_callback| is called on
   // |frontend_loop_|.
-  void RefreshNigori(const base::Closure& done_callback);
+  void AssociateNigori(const base::Closure& done_callback);
 
   // Handles stopping the core's SyncManager, accounting for whether
   // initialization is done yet.