sync: Implement NonBlockingTypeProcessorCore

sync/engine/non_blocking_type_processor_interface.h

Index: sync/engine/non_blocking_type_processor_interface.h
diff --git a/sync/engine/non_blocking_type_processor_interface.h b/sync/engine/non_blocking_type_processor_interface.h
new file mode 100644
index 0000000000000000000000000000000000000000..ccc504bd204c24c34ba47c93e18a2916f93b992d
--- /dev/null
+++ b/sync/engine/non_blocking_type_processor_interface.h
@@ -0,0 +1,31 @@
+// 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_NON_BLOCKING_TYPE_PROCESSOR_INTERFACE_H_
+#define SYNC_ENGINE_NON_BLOCKING_TYPE_PROCESSOR_INTERFACE_H_
+
+#include "sync/base/sync_export.h"
+
+struct CommitResponseDataList;
+struct DataTypeState;
+struct UpdateResponseDataList;
+
+namespace syncer {
+
+class SYNC_EXPORT_PRIVATE NonBlockingTypeProcessorInterface {
+ public:
+  NonBlockingTypeProcessorInterface();
+  virtual ~NonBlockingTypeProcessorInterface();
+
+  virtual void ReceiveCommitResponse(
+      const DataTypeState& type_state,
+      const CommitResponseDataList& response_list) = 0;
+  virtual void ReceiveUpdateResponse(
+      const DataTypeState& type_state,
+      const UpdateResponseDataList& response_list) = 0;
+};
+
+}  // namespace syncer
+
+#endif  // SYNC_ENGINE_NON_BLOCKING_TYPE_PROCESSOR_INTERFACE_H_