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

sync/test/mock_invalidation.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 SYNC_TEST_MOCK_INVALIDATION_H_
-#define SYNC_TEST_MOCK_INVALIDATION_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-
-#include "sync/internal_api/public/base/invalidation_interface.h"
-
-namespace syncer {
-
-// An InvalidationInterface used by sync for testing.
-// It does not support any form of acknowledgements.
-class MockInvalidation : public InvalidationInterface {
- public:
-  // Helpers to build new MockInvalidations.
-  static std::unique_ptr<MockInvalidation> BuildUnknownVersion();
-  static std::unique_ptr<MockInvalidation> Build(int64_t version,
-                                                 const std::string& payload);
-
-  ~MockInvalidation() override;
-
-  // Implementation of InvalidationInterface.
-  bool IsUnknownVersion() const override;
-  const std::string& GetPayload() const override;
-  int64_t GetVersion() const override;
-  void Acknowledge() override;
-  void Drop() override;
-
- protected:
-  MockInvalidation(bool is_unknown_version,
-                   int64_t version,
-                   const std::string& payload);
-
-  // Whether or not this is an 'unknown version' invalidation.
-  const bool is_unknown_version_;
-
-  // The version of this invalidation.  Valid only if !is_unknown_version_.
-  const int64_t version_;
-
-  // The payload of this invalidation.  Valid only if !is_unknown_version_.
-  const std::string payload_;
-};
-
-}  // namespace syncer
-
-#endif  // SYNC_TEST_MOCK_INVALIDATION_H_