1 files changed, 48 insertions, 0 deletions
diff --git a/chromium/components/speech/downstream_loader.cc b/chromium/components/speech/downstream_loader.cc
new file mode 100644
index 00000000000..14ca74922de
--- /dev/null
+++ b/chromium/components/speech/downstream_loader.cc
@@ -0,0 +1,48 @@
+// Copyright 2020 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/speech/downstream_loader.h"
+
+#include "base/callback.h"
+#include "components/speech/downstream_loader_client.h"
+
+namespace speech {
+
+DownstreamLoader::DownstreamLoader(
+    std::unique_ptr<network::ResourceRequest> resource_request,
+    net::NetworkTrafficAnnotationTag upstream_traffic_annotation,
+    network::mojom::URLLoaderFactory* url_loader_factory,
+    DownstreamLoaderClient* downstream_loader_client)
+    : downstream_loader_client_(downstream_loader_client) {
+  DCHECK(downstream_loader_client_);
+  simple_url_loader_ = network::SimpleURLLoader::Create(
+      std::move(resource_request), upstream_traffic_annotation);
+  simple_url_loader_->DownloadAsStream(url_loader_factory, this);
+}
+
+DownstreamLoader::~DownstreamLoader() = default;
+
+void DownstreamLoader::OnDataReceived(base::StringPiece string_piece,
+                                      base::OnceClosure resume) {
+  downstream_loader_client_->OnDownstreamDataReceived(string_piece);
+  std::move(resume).Run();
+}
+
+void DownstreamLoader::OnComplete(bool success) {
+  int response_code = -1;
+  if (simple_url_loader_->ResponseInfo() &&
+      simple_url_loader_->ResponseInfo()->headers) {
+    response_code =
+        simple_url_loader_->ResponseInfo()->headers->response_code();
+  }
+
+  downstream_loader_client_->OnDownstreamDataComplete(success, response_code);
+}
+
+void DownstreamLoader::OnRetry(base::OnceClosure start_retry) {
+  // Retries are not enabled for these requests.
+  NOTREACHED();
+}
+
+}  // namespace speech