Revert of Partial implementation of subscription restrictions.

content/public/common/push_subscription_options.h

-// Copyright 2016 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.
-
-#ifndef CONTENT_PUBLIC_COMMON_PUSH_SUBSCRIPTION_OPTIONS_H_
-#define CONTENT_PUBLIC_COMMON_PUSH_SUBSCRIPTION_OPTIONS_H_
-
-#include <string>
-
-#include "content/common/content_export.h"
-
-namespace content {
-
-// Structure to hold the options provided from the web app developer as
-// part of asking for a new push subscription.
-struct CONTENT_EXPORT PushSubscriptionOptions {
-  PushSubscriptionOptions() {}
-  ~PushSubscriptionOptions() {}
-
-  // Whether or not the app developer agrees to provide user visible
-  // notifications whenever they receive a push message.
-  bool user_visible_only = false;
-
-  // The unique identifier of the application service which is used to
-  // verify the push message before delivery. This could either be an ID
-  // assigned by the developer console or the app server's public key.
-  std::string sender_info;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_COMMON_CONTENT_PUSH_SUBSCRIPTION_OPTIONS_H_