[Sync] Move //sync to //components/sync.

sync/js/js_event_details.cc

-// Copyright (c) 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.
-
-#include "sync/js/js_event_details.h"
-
-#include "base/json/json_writer.h"
-
-namespace syncer {
-
-JsEventDetails::JsEventDetails() {}
-
-JsEventDetails::JsEventDetails(base::DictionaryValue* details)
-    : details_(details) {}
-
-JsEventDetails::JsEventDetails(const JsEventDetails& other) = default;
-
-JsEventDetails::~JsEventDetails() {}
-
-const base::DictionaryValue& JsEventDetails::Get() const {
-  return details_.Get();
-}
-
-std::string JsEventDetails::ToString() const {
-  std::string str;
-  base::JSONWriter::Write(Get(), &str);
-  return str;
-}
-
-}  // namespace syncer