| // Copyright 2014 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "ios/web/public/web_state_observer.h" |
| |
| #import <ostream> |
| |
| #import "base/check.h" |
| |
| #if !defined(__has_feature) || !__has_feature(objc_arc) |
| #error "This file requires ARC support." |
| #endif |
| |
| namespace web { |
| |
| WebStateObserver::WebStateObserver() = default; |
| |
| WebStateObserver::~WebStateObserver() { |
| CHECK(!IsInObserverList()) << "WebStateObserver must be removed from " |
| "WebState observer list before destruction."; |
| } |
| |
| } // namespace web |
