[Sync] Move attachments code out of core/.

components/sync/core_impl/attachments/in_memory_attachment_store_unittest.cc

Index: components/sync/core_impl/attachments/in_memory_attachment_store_unittest.cc
diff --git a/components/sync/core_impl/attachments/in_memory_attachment_store_unittest.cc b/components/sync/core_impl/attachments/in_memory_attachment_store_unittest.cc
deleted file mode 100644
index d19043e44222800512da8e17e394b6905ca1c830..0000000000000000000000000000000000000000
--- a/components/sync/core_impl/attachments/in_memory_attachment_store_unittest.cc
+++ /dev/null
@@ -1,25 +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.
-
-#include "components/sync/api/attachments/attachment_store.h"
-
-#include "components/sync/core_impl/attachments/attachment_store_test_template.h"
-
-namespace syncer {
-
-class InMemoryAttachmentStoreFactory {
- public:
-  InMemoryAttachmentStoreFactory() {}
-  ~InMemoryAttachmentStoreFactory() {}
-
-  std::unique_ptr<AttachmentStore> CreateAttachmentStore() {
-    return AttachmentStore::CreateInMemoryStore();
-  }
-};
-
-INSTANTIATE_TYPED_TEST_CASE_P(InMemory,
-                              AttachmentStoreTest,
-                              InMemoryAttachmentStoreFactory);
-
-}  // namespace syncer