Simplify permission-related code for Web Notifications.

chrome/browser/notifications/notification_permission_context.cc

+// Copyright 2015 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.
+
+#include "chrome/browser/notifications/notification_permission_context.h"
+
+#include "chrome/browser/notifications/desktop_notification_profile_util.h"
+#include "components/content_settings/core/common/content_settings_pattern.h"
+#include "url/gurl.h"
+
+NotificationPermissionContext::NotificationPermissionContext(Profile* profile)
+    : PermissionContextBase(profile, CONTENT_SETTINGS_TYPE_NOTIFICATIONS) {}
+
+NotificationPermissionContext::~NotificationPermissionContext() {}
+
+void NotificationPermissionContext::ResetPermission(
+    const GURL& requesting_origin,
+    const GURL& embedder_origin) {
+  DesktopNotificationProfileUtil::ClearSetting(
+      profile(), ContentSettingsPattern::FromURLNoWildcard(requesting_origin));
+}
+
+// Unlike other permission types, granting a notification for a given origin
+// will not take into account the |embedder_origin|, it will only be based
+// on the requesting iframe origin.
+// TODO(mukai) Consider why notifications behave differently than
+// other permissions. https://crbug.com/416894
+void NotificationPermissionContext::UpdateContentSetting(
+    const GURL& requesting_origin,
+    const GURL& embedder_origin,
+    ContentSetting content_setting) {
+  DCHECK(content_setting == CONTENT_SETTING_ALLOW ||
+         content_setting == CONTENT_SETTING_BLOCK);
+
+  if (content_setting == CONTENT_SETTING_ALLOW) {
+    DesktopNotificationProfileUtil::GrantPermission(profile(),
+                                                    requesting_origin);
+  } else {
+    DesktopNotificationProfileUtil::DenyPermission(profile(),
+                                                   requesting_origin);
+  }
+}
+
+bool NotificationPermissionContext::IsRestrictedToSecureOrigins() const {
+  return false;
+}