[Sync] rename USS processor / worker interfaces

sync/engine/model_type_sync_proxy.h

Index: sync/engine/model_type_sync_proxy.h
diff --git a/sync/engine/model_type_sync_proxy.h b/sync/engine/model_type_sync_proxy.h
deleted file mode 100644
index 5385542572d81ca31f9610cd6067d926981e1a5d..0000000000000000000000000000000000000000
--- a/sync/engine/model_type_sync_proxy.h
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef SYNC_ENGINE_MODEL_TYPE_SYNC_PROXY_H_
-#define SYNC_ENGINE_MODEL_TYPE_SYNC_PROXY_H_
-
-#include "sync/base/sync_export.h"
-#include "sync/internal_api/public/non_blocking_sync_common.h"
-
-namespace syncer_v2 {
-
-// Interface used by sync backend to issue requests to a synced data type.
-class SYNC_EXPORT_PRIVATE ModelTypeSyncProxy {
- public:
-  ModelTypeSyncProxy();
-  virtual ~ModelTypeSyncProxy();
-
-  virtual void OnCommitCompleted(
-      const DataTypeState& type_state,
-      const CommitResponseDataList& response_list) = 0;
-  virtual void OnUpdateReceived(
-      const DataTypeState& type_state,
-      const UpdateResponseDataList& response_list,
-      const UpdateResponseDataList& pending_updates) = 0;
-};
-
-}  // namespace syncer
-
-#endif  // SYNC_ENGINE_MODEL_TYPE_SYNC_PROXY_H_