Store attachment crc in AttachmentStore

sync/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 
 component("sync") {
   public_deps = [
     ":sync_core",
     "//sync/protocol",
@@ skipping 105 matching lines @@
     "engine/update_handler.h",
     "internal_api/attachments/attachment_downloader.cc",
     "internal_api/attachments/attachment_downloader_impl.cc",
     "internal_api/attachments/attachment_service.cc",
     "internal_api/attachments/attachment_service_impl.cc",
     "internal_api/attachments/attachment_service_proxy.cc",
     "internal_api/attachments/attachment_service_proxy_for_test.cc",
     "internal_api/attachments/attachment_store_handle.cc",
     "internal_api/attachments/attachment_uploader.cc",
     "internal_api/attachments/attachment_uploader_impl.cc",
+    "internal_api/attachments/attachment_util.cc",
     "internal_api/attachments/fake_attachment_downloader.cc",
     "internal_api/attachments/fake_attachment_uploader.cc",
     "internal_api/attachments/in_memory_attachment_store.cc",
     "internal_api/attachments/on_disk_attachment_store.cc",
     "internal_api/base_node.cc",
     "internal_api/base_transaction.cc",
     "internal_api/change_record.cc",
     "internal_api/change_reorder_buffer.cc",
     "internal_api/change_reorder_buffer.h",
     "internal_api/debug_info_event_listener.cc",
@@ skipping 19 matching lines @@
     "internal_api/protocol_event_buffer.h",
     "internal_api/public/attachments/attachment_downloader.h",
     "internal_api/public/attachments/attachment_downloader_impl.h",
     "internal_api/public/attachments/attachment_service.h",
     "internal_api/public/attachments/attachment_service_impl.h",
     "internal_api/public/attachments/attachment_service_proxy.h",
     "internal_api/public/attachments/attachment_service_proxy_for_test.h",
     "internal_api/public/attachments/attachment_store_handle.h",
     "internal_api/public/attachments/attachment_uploader.h",
     "internal_api/public/attachments/attachment_uploader_impl.h",
+    "internal_api/public/attachments/attachment_util.h",
     "internal_api/public/attachments/fake_attachment_downloader.h",
     "internal_api/public/attachments/fake_attachment_uploader.h",
     "internal_api/public/attachments/in_memory_attachment_store.h",
     "internal_api/public/attachments/on_disk_attachment_store.h",
     "internal_api/public/base/attachment_id_proto.cc",
     "internal_api/public/base/attachment_id_proto.h",
     "internal_api/public/base/cancelation_observer.cc",
     "internal_api/public/base/cancelation_observer.h",
     "internal_api/public/base/cancelation_signal.cc",
     "internal_api/public/base/cancelation_signal.h",
@@ skipping 637 matching lines @@
   }
 
   # GYP: //sync/sync_tests.gypi:sync_unit_tests_apk
   unittest_apk("sync_unit_tests_apk") {
     unittests_dep = ":sync_unit_tests"
     deps =  [
       ":sync_unit_tests",
     ]
   }
 }