[Sync] Move events files around a bit.

components/sync/engine/events/poll_get_updates_request_event.h

Index: components/sync/engine/events/poll_get_updates_request_event.h
diff --git a/components/sync/engine/events/poll_get_updates_request_event.h b/components/sync/engine/events/poll_get_updates_request_event.h
deleted file mode 100644
index 12b2542847f1881a9dd543bb849e0c463dfb9ef4..0000000000000000000000000000000000000000
--- a/components/sync/engine/events/poll_get_updates_request_event.h
+++ /dev/null
@@ -1,44 +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 COMPONENTS_SYNC_ENGINE_EVENTS_POLL_GET_UPDATES_REQUEST_EVENT_H_
-#define COMPONENTS_SYNC_ENGINE_EVENTS_POLL_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 {
-
-class NudgeTracker;
-
-// An event representing a poll request sent to the server.
-class PollGetUpdatesRequestEvent : public ProtocolEvent {
- public:
-  PollGetUpdatesRequestEvent(base::Time timestamp,
-                             const sync_pb::ClientToServerMessage& request);
-  ~PollGetUpdatesRequestEvent() 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;
-
- private:
-  const base::Time timestamp_;
-  const sync_pb::ClientToServerMessage request_;
-
-  DISALLOW_COPY_AND_ASSIGN(PollGetUpdatesRequestEvent);
-};
-
-}  // namespace syncer
-
-#endif  // COMPONENTS_SYNC_ENGINE_EVENTS_POLL_GET_UPDATES_REQUEST_EVENT_H_