Implement extension controlled indicators, starting with New Tab page

chrome/browser/resources/settings/controls/extension_controlled_indicator.js

Index: chrome/browser/resources/settings/controls/extension_controlled_indicator.js
diff --git a/chrome/browser/resources/settings/controls/extension_controlled_indicator.js b/chrome/browser/resources/settings/controls/extension_controlled_indicator.js
new file mode 100644
index 0000000000000000000000000000000000000000..796d179546d6cd50c368d200bea8a747fa8b9004
--- /dev/null
+++ b/chrome/browser/resources/settings/controls/extension_controlled_indicator.js
@@ -0,0 +1,36 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.

[dpapad, 2016/11/17 01:50:07]

2016

[Dan Beam, 2016/11/17 02:50:14]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+Polymer({
+  is: 'extension-controlled-indicator',
+
+  behaviors: [I18nBehavior],
+
+  properties: {
+    extensionCanBeDisabled: Boolean,
+    extensionId: String,
+    extensionName: String,
+  },
+
+  /**
+   * @param {string} extensionId
+   * @param {string} extensionName
+   * @return {string}
+   * @private
+   */
+  getLabel_: function(extensionId, extensionName) {
+    var manageUrl = 'chrome://extensions/?id=' + assert(this.extensionId);
+    return this.i18n('controlledByExtension',
+        `<a href="${manageUrl}" target="_blank">` +
+        assert(this.extensionName) + '</a>');
+  },
+
+  /** @private */
+  onDisableTap_: function() {
+    assert(this.extensionCanBeDisabled);

[dpapad, 2016/11/17 01:50:07]

Can you verify that C++ is also checking for this at some layer? Otherwise a
user could maybe disable an extension using the dev console.

[Dan Beam, 2016/11/17 02:50:14]

https://cs.chromium.org/chromium/src/chrome/browser/extensions/extension_serv...

+    settings.ExtensionControlBrowserProxyImpl.getInstance().disableExtension(
+        assert(this.extensionId));
+    this.fire('extension-disable');
+  },
+});