DevTools: implement release note behind an experiment

third_party/WebKit/Source/devtools/front_end/help/ReleaseNoteText.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.
+
+// NOTE: need to be careful about adding release notes early otherwise it'll
+// be shown in Canary (e.g. make sure the release notes are accurate)

[luoe, 2017/02/15 22:32:29]

nit: period at the end.

I think it would be nice if we had a link directing people to crbug/github docs
that explained the process behind adding new release notes.  There, we could
explain how to time the notes with major releases, limiting the number of notes
to N, etc.

[chenwilliam, 2017/02/16 21:32:43]

Done.

+
+/** @type {!Array<!Help.ReleaseNote>} */
+Help.ReleaseNoteManager.releaseNotesByVersion = [
+  {
+    version: 58,
+    highlights: [
+      {
+        text: 'Review CSS changes in the new Changes drawer',
+        link: 'https://developers.google.com/web/updates/2016/06/devtools-digest',
+        featured: true,
+      },
+      {
+        text: 'Contextual icons in Console',
+        link: 'https://developers.google.com/web/updates/2016/06/devtools-digest',
+      },
+      {
+        text: 'Release notes for DevTools (e.g. this)!',
+        link: 'https://developers.google.com/web/updates/2016/06/devtools-digest',
+      },
+    ],
+    link: 'https://developers.google.com/web/updates/2016/06/devtools-digest',
+    image: {
+      src: 'https://developers.google.com/web/updates/images/2016/08/colorpicker.jpg',
+    },
+  },
+];