DBus MediaAnalyticsClient and media_perception pb.

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

Index: chrome/test/data/extensions/api_test/media_perception_private/media_perception/runtest.js
diff --git a/chrome/test/data/extensions/api_test/media_perception_private/media_perception/runtest.js b/chrome/test/data/extensions/api_test/media_perception_private/media_perception/runtest.js
new file mode 100644
index 0000000000000000000000000000000000000000..ac5e09a3c1e962383c280eb89a4638152c76445f
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/media_perception_private/media_perception/runtest.js
@@ -0,0 +1,27 @@
+// 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.
+
+// Set the state to STARTED to automatically start listening to
+// MediaPerceptionDetection signals.
+
+function setState() {
+  let kStatusEnum = "STARTED";
+  chrome.mediaPerceptionPrivate.setState(
+     { status: statusEnum }, chrome.test.callbackPass(
+         function (response) {
+           chrome.test.assertEq(response.status, statusEnum);
+     }));
+}
+
+function registerListener() {
+  chrome.test.listenOnce(
+      chrome.mediaPerceptionPrivate.onMediaPerception,
+      function(evt) {
+        chrome.test.assertEq(evt.timestamp, 1);
+    });
+  chrome.test.notifyPass();
+}
+
+chrome.test.runTests([setState, registerListener]);
+