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_

[tbarzic, 2017/05/11 00:38:27]

s/utils/util/

[Luke Sorenson, 2017/05/11 23:57:59]

The file is conversion_utils.h I don't think there is a misspelling here. Are
you asking me to rename the file to conversion_util.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 media_perception = extensions::api::media_perception_private;
+
+namespace extensions {
+
+// Converts State proto messages to State objects (generated by the
+// media_perception_private.idl) to be returned to the JavaScript frontend.
+media_perception::State StateProtoToIdl(const mri::State& state);
+
+// Converts State objects (generated by the media_perception_private.idl) to
+// State proto messages to be sent over D-Bus.
+mri::State StateIdlToProto(const media_perception::State& state);
+
+// Converts incoming (over D-Bus channel) MediaPerception proto messages
+// to MediaPerception objects (generated by the
+// media_perception_private.idl) to be broadcasted as events to the
+// JavaScript frontend.
+media_perception::MediaPerception MediaPerceptionProtoToIdl(
+    const mri::MediaPerception& media_perception);
+
+// Converts Diagnostics proto messages to Diagnostics objects (generated by the
+// media_perception_private.idl) to be returned to the JavaScript frontend as a
+// callback.
+media_perception::Diagnostics DiagnosticsProtoToIdl(
+    const mri::Diagnostics& diagnostics);
+
+}  //  namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_CONVERSION_UTILS_H_