Invoke AttachmentUploader and update AttachmentIds.

sync/syncable/mutable_entry.cc

Index: sync/syncable/mutable_entry.cc
diff --git a/sync/syncable/mutable_entry.cc b/sync/syncable/mutable_entry.cc
index d9d5daa890f0c13fedd1723bfe9b27794a4b2d14..98af1ccf66ce5383226c41ca241147f308a195cb 100644
--- a/sync/syncable/mutable_entry.cc
+++ b/sync/syncable/mutable_entry.cc
@@ -247,6 +247,25 @@ void MutableEntry::PutAttachmentMetadata(
   }
 }
 
+void MutableEntry::UpdateAttachmentIdWithServerInfo(
+    const sync_pb::AttachmentIdProto& updated_attachment_id) {
+  DCHECK(kernel_);
+  DCHECK(!updated_attachment_id.unique_id().empty());
+  write_transaction()->TrackChangesTo(kernel_);
+  sync_pb::AttachmentMetadata& attachment_metadata =
+      kernel_->mutable_ref(ATTACHMENT_METADATA);
+  for (int i = 0; i < attachment_metadata.record_size(); ++i) {
+    sync_pb::AttachmentMetadataRecord* record =
+        attachment_metadata.mutable_record(i);
+    if (record->id().unique_id() != updated_attachment_id.unique_id())
+      continue;
+    *record->mutable_id() = updated_attachment_id;
+    record->set_is_on_server(true);
+  }
+  kernel_->mark_dirty(&dir()->kernel_->dirty_metahandles);
+  MarkForSyncing(this);
+}
+
 // This function sets only the flags needed to get this entry to sync.
 bool MarkForSyncing(MutableEntry* e) {
   DCHECK_NE(static_cast<MutableEntry*>(NULL), e);