Remove SupportsUserData from ResourceRequestBodyImpl.

content/browser/loader/resource_request_info_impl.cc

 // Copyright (c) 2012 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 "content/browser/loader/resource_request_info_impl.h"
 
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/loader/global_routing_id.h"
 #include "content/browser/loader/resource_message_filter.h"
 #include "content/browser/web_contents/web_contents_impl.h"
@@ skipping 347 matching lines @@
   if (on_transfer_) {
     on_transfer_.Run(std::move(url_loader_request),
                      std::move(url_loader_client));
   }
 }
 
 void ResourceRequestInfoImpl::ResetBody() {
   body_ = nullptr;
 }
 
+void ResourceRequestInfoImpl::SetBlobHandles(BlobHandles blob_handles) {
+  blob_handles_ = std::move(blob_handles);
+}
+
 }  // namespace content