[Sync] Move sessions/ to engine/cycle/ and rename things to match.

components/sync/sessions_impl/debug_info_getter.h

-// Copyright 2012 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 COMPONENTS_SYNC_SESSIONS_IMPL_DEBUG_INFO_GETTER_H_
-#define COMPONENTS_SYNC_SESSIONS_IMPL_DEBUG_INFO_GETTER_H_
-
-#include "components/sync/protocol/sync.pb.h"
-
-namespace syncer {
-namespace sessions {
-
-// This is the interface that needs to be implemented by the event listener
-// to communicate the debug info data to the syncer.
-class DebugInfoGetter {
- public:
-  // Gets the client debug info. Be sure to clear the info to ensure the data
-  // isn't sent multiple times.
-  virtual void GetDebugInfo(sync_pb::DebugInfo* debug_info) = 0;
-
-  // Clears the debug info.
-  virtual void ClearDebugInfo() = 0;
-
-  virtual ~DebugInfoGetter() {}
-};
-
-}  // namespace sessions
-}  // namespace syncer
-
-#endif  // COMPONENTS_SYNC_SESSIONS_IMPL_DEBUG_INFO_GETTER_H_