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

sync/api/conflict_resolution.cc

-// Copyright 2016 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/api/conflict_resolution.h"
-
-namespace syncer_v2 {
-
-// static
-ConflictResolution ConflictResolution::UseLocal() {
-  return ConflictResolution(USE_LOCAL, nullptr);
-}
-
-// static
-ConflictResolution ConflictResolution::UseRemote() {
-  return ConflictResolution(USE_REMOTE, nullptr);
-}
-
-// static
-ConflictResolution ConflictResolution::UseNew(
-    std::unique_ptr<EntityData> data) {
-  DCHECK(data);
-  return ConflictResolution(USE_NEW, std::move(data));
-}
-
-ConflictResolution::ConflictResolution(ConflictResolution&& other)
-    : ConflictResolution(other.type(), other.ExtractData()) {}
-
-ConflictResolution::~ConflictResolution() {}
-
-std::unique_ptr<EntityData> ConflictResolution::ExtractData() {
-  // Has data if and only if type is USE_NEW.
-  DCHECK((type_ == USE_NEW) == !!data_);
-  return std::move(data_);
-};
-
-ConflictResolution::ConflictResolution(Type type,
-                                       std::unique_ptr<EntityData> data)
-    : type_(type), data_(std::move(data)) {}
-
-}  // namespace syncer_v2