MD Settings: Allow editing a cookie site exception.

chrome/browser/resources/settings/site_settings/edit_exception_dialog.js

Index: chrome/browser/resources/settings/site_settings/edit_exception_dialog.js
diff --git a/chrome/browser/resources/settings/site_settings/edit_exception_dialog.js b/chrome/browser/resources/settings/site_settings/edit_exception_dialog.js
new file mode 100644
index 0000000000000000000000000000000000000000..8262aebab172dc9e231ae5625175135ecfe86083
--- /dev/null
+++ b/chrome/browser/resources/settings/site_settings/edit_exception_dialog.js
@@ -0,0 +1,78 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.

[dschuyler, 2017/02/23 22:24:50]

nit: copyright year.

[dpapad, 2017/02/24 00:17:19]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview 'settings-edit-exception-dialog' is a component for editing a
+ * site exception entry.
+ */
+Polymer({
+  is: 'settings-edit-exception-dialog',
+
+  properties: {
+    /**
+     * @type {!SiteException}
+     */
+    model: Object,
+
+    /** @private */
+    origin_: String,
+  },
+
+  /** @private {!settings.SiteSettingsPrefsBrowserProxy} */
+  browserProxy_: null,
+
+  /** @override */
+  attached: function() {
+    this.browserProxy_ =
+        settings.SiteSettingsPrefsBrowserProxyImpl.getInstance();
+    this.origin_ = this.model.origin;
+
+    this.$.dialog.showModal();
+  },
+
+  /** @private */
+  onCancelTap_: function() {
+    this.$.dialog.close();
+  },
+
+  /** @private */
+  onActionButtonTap_: function() {
+    if (this.model.origin != this.origin_) {
+      // TODO(dpapad): Only COOKIES category can be edited currently,
+      // crbug.com/695578.
+      var category = settings.ContentSettingsTypes.COOKIES;
+

[dschuyler, 2017/02/23 22:24:50]

nit: Maybe a comment about why the reset* before the set*

[dpapad, 2017/02/24 00:17:19]

Done.

+      this.browserProxy_.resetCategoryPermissionForOrigin(
+          this.model.origin,
+          this.model.embeddingOrigin,
+          category,
+          this.model.incognito);
+
+      this.browserProxy_.setCategoryPermissionForOrigin(
+          this.origin_,
+          this.origin_,
+          category,
+          this.model.setting,
+          this.model.incognito);
+    }
+
+    this.$.dialog.close();
+  },
+
+  /**
+   * @param {!KeyboardEvent} e
+   * @private
+   */
+  onKeypress_: function(e) {
+    if (e.key == 'Enter' && !this.$.actionButton.disabled)
+      this.onActionButtonTap_();
+  },
+
+  /** @private */
+  validate_: function() {
+    this.browserProxy_.isPatternValid(this.origin_).then(function(isValid) {
+      this.$.actionButton.disabled = !isValid;
+    }.bind(this));
+  },
+});