[Sync] Move events files around a bit.

components/sync/engine/events/poll_get_updates_request_event.cc

-// 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.
-
-#include "components/sync/engine/events/poll_get_updates_request_event.h"
-
-#include "components/sync/protocol/proto_value_conversions.h"
-
-namespace syncer {
-
-PollGetUpdatesRequestEvent::PollGetUpdatesRequestEvent(
-    base::Time timestamp,
-    const sync_pb::ClientToServerMessage& request)
-    : timestamp_(timestamp), request_(request) {}
-
-PollGetUpdatesRequestEvent::~PollGetUpdatesRequestEvent() {}
-
-base::Time PollGetUpdatesRequestEvent::GetTimestamp() const {
-  return timestamp_;
-}
-
-std::string PollGetUpdatesRequestEvent::GetType() const {
-  return "Poll GetUpdate request";
-}
-
-std::string PollGetUpdatesRequestEvent::GetDetails() const {
-  return std::string();
-}
-
-std::unique_ptr<base::DictionaryValue>
-PollGetUpdatesRequestEvent::GetProtoMessage() const {
-  return std::unique_ptr<base::DictionaryValue>(
-      ClientToServerMessageToValue(request_, false));
-}
-
-std::unique_ptr<ProtocolEvent> PollGetUpdatesRequestEvent::Clone() const {
-  return std::unique_ptr<ProtocolEvent>(
-      new PollGetUpdatesRequestEvent(timestamp_, request_));
-}
-
-}  // namespace syncer