import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/shared/specs/performance-entries.js

@@ -0,0 +1,25 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const { Arg, generateActorSpec } = require("devtools/shared/protocol");
+
+const performanceEntriesSpec = generateActorSpec({
+  typeName: "performanceEntries",
+
+  events: {
+    "entry": {
+      type: "entry",
+      // object containing performance entry name, type, origin, and epoch.
+      detail: Arg(0, "json")
+    }
+  },
+
+  methods: {
+    start: {},
+    stop: {}
+  }
+});
+
+exports.performanceEntriesSpec = performanceEntriesSpec;