|  | // 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 "extensions/browser/api/display_source/display_source_connection_delegate.h" | 
|  |  | 
|  | namespace extensions { | 
|  |  | 
|  | DisplaySourceConnectionDelegate::Connection::Connection() {} | 
|  |  | 
|  | DisplaySourceConnectionDelegate::Connection::~Connection() {} | 
|  |  | 
|  | DisplaySourceConnectionDelegate::DisplaySourceConnectionDelegate() {} | 
|  |  | 
|  | DisplaySourceConnectionDelegate::~DisplaySourceConnectionDelegate() {} | 
|  |  | 
|  | void DisplaySourceConnectionDelegate::AddObserver(Observer* observer) { | 
|  | observers_.AddObserver(observer); | 
|  | } | 
|  |  | 
|  | void DisplaySourceConnectionDelegate::RemoveObserver(Observer* observer) { | 
|  | observers_.RemoveObserver(observer); | 
|  | } | 
|  |  | 
|  | }  // namespace extensions |