MediaPerceptionPrivate API impl and testing.

extensions/browser/api/media_perception_private/conversion_utils.h

+// Copyright 2017 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.
+
+#ifndef EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_CONVERSION_UTILS_H_
+#define EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_CONVERSION_UTILS_H_
+
+#include "chromeos/media_perception/media_perception.pb.h"
+#include "extensions/common/api/media_perception_private.h"
+
+namespace extensions {
+namespace api {
+namespace media_perception_private {
+
+// Converts State proto messages to State objects (generated by the
+// media_perception_private.idl).
+State StateProtoToIdl(const mri::State& state);
+
+// Converts State objects (generated by the media_perception_private.idl) to
+// State proto messages.
+mri::State StateIdlToProto(const State& state);
+
+// Converts MediaPerception proto messages to MediaPerception objects
+// (generated by the media_perception_private.idl).
+MediaPerception MediaPerceptionProtoToIdl(
+    const mri::MediaPerception& media_perception);
+
+// Converts Diagnostics proto messages to Diagnostics objects (generated by the
+// media_perception_private.idl).
+Diagnostics DiagnosticsProtoToIdl(const mri::Diagnostics& diagnostics);
+
+}  //  namespace media_perception_private
+}  //  namespace api
+}  //  namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_CONVERSION_UTILS_H_