[Sync] Move attachments code out of core/.

components/sync/engine_impl/attachments/attachment_downloader_impl.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/core/attachments/attachment_downloader_impl.h"
+#include "components/sync/engine_impl/attachments/attachment_downloader_impl.h"
 
 #include <utility>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/single_thread_task_runner.h"
 #include "base/sys_byteorder.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
-#include "components/sync/core/attachments/attachment_uploader_impl.h"
-#include "components/sync/core/attachments/attachment_util.h"
+#include "components/sync/engine/attachments/attachment_util.h"
+#include "components/sync/engine_impl/attachments/attachment_uploader_impl.h"
 #include "components/sync/protocol/sync.pb.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/http/http_util.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 
 namespace syncer {
 
@@ skipping 251 matching lines @@
 
   if (crc32c_raw.size() != sizeof(*crc32c))
     return false;
 
   *crc32c =
       base::NetToHost32(*reinterpret_cast<const uint32_t*>(crc32c_raw.c_str()));
   return true;
 }
 
 }  // namespace syncer