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

components/sync/engine/events/normal_get_updates_request_event.h

 // 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 COMPONENTS_SYNC_ENGINE_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
 #define COMPONENTS_SYNC_ENGINE_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "components/sync/base/model_type.h"
 #include "components/sync/engine/events/protocol_event.h"
 #include "components/sync/protocol/sync.pb.h"
 
 namespace syncer {
 
-namespace sessions {
 class NudgeTracker;
-}  // namespace sessions
 
 // An event representing a 'normal mode' GetUpdate request to the server.
 class NormalGetUpdatesRequestEvent : public ProtocolEvent {
  public:
   NormalGetUpdatesRequestEvent(base::Time timestamp,
-                               const sessions::NudgeTracker& nudge_tracker,
+                               const NudgeTracker& nudge_tracker,
                                const sync_pb::ClientToServerMessage& request);
 
   ~NormalGetUpdatesRequestEvent() override;
 
   base::Time GetTimestamp() const override;
   std::string GetType() const override;
   std::string GetDetails() const override;
   std::unique_ptr<base::DictionaryValue> GetProtoMessage() const override;
   std::unique_ptr<ProtocolEvent> Clone() const override;
 
@@ skipping 13 matching lines @@
   const bool is_retry_;
 
   const sync_pb::ClientToServerMessage request_;
 
   DISALLOW_COPY_AND_ASSIGN(NormalGetUpdatesRequestEvent);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_ENGINE_EVENTS_NORMAL_GET_UPDATES_REQUEST_EVENT_H_