DBus MediaAnalyticsClient and media_perception pb.

chrome/test/data/extensions/api_test/media_perception_private/state/runtest.js

+// 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.
+
+let statusEnum = "SUSPENDED"
+let state = { status: statusEnum }
+chrome.mediaPerceptionPrivate.setState(state, function (response) {
+  chrome.test.assertEq(response.status, statusEnum);
+  chrome.test.failure("Setting state returns unexpected state.");
+});
+
+chrome.mediaPerceptionPrivate.getState(function (response) {
+  chrome.test.assertEq(response.status, statusEnum);
+  chrome.test.failure("Getting state returns unexpected state.");
+});
+
+chrome.test.succeed("Setting and getting state completed successfully.");