Remove Chromecast extension support from cast system tray menu.

chrome/browser/ui/ash/cast_config_delegate_media_router.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/ui/ash/cast_config_delegate_media_router.h"
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 133 matching lines @@
   // The CastDeviceCache instance is lazily allocated because the MediaRouter
   // component is not ready when the constructor is invoked.
   if (!devices_ && GetMediaRouter() != nullptr) {
     devices_.reset(new CastDeviceCache(this));
     devices_->Init();
   }
 
   return devices_.get();
 }
 
-bool CastConfigDelegateMediaRouter::HasCastExtension() const {
-  return true;
-}
-
 void CastConfigDelegateMediaRouter::RequestDeviceRefresh() {
   // The media router component isn't ready yet.
   if (!devices())
     return;
 
   // Build the old-style ReceiverAndActivity set out of the MediaRouter
   // source/sink/route setup. We first map the existing sinks, and then we
   // update those sinks with activity information.
 
   ReceiversAndActivities items;
@@ skipping 48 matching lines @@
       media_router::MediaSourceForDesktop().id(), receiver_id,
       GURL("http://cros-cast-origin/"), nullptr,
       std::vector<media_router::MediaRouteResponseCallback>(),
       base::TimeDelta(), false);
 }
 
 void CastConfigDelegateMediaRouter::StopCasting(const std::string& route_id) {
   GetMediaRouter()->TerminateRoute(route_id);
 }
 
-bool CastConfigDelegateMediaRouter::HasOptions() const {
-  // There are no plans to have an options page for the MediaRouter.
-  return false;
-}
-
-void CastConfigDelegateMediaRouter::LaunchCastOptions() {}
-
 void CastConfigDelegateMediaRouter::AddObserver(
     ash::CastConfigDelegate::Observer* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void CastConfigDelegateMediaRouter::RemoveObserver(
     ash::CastConfigDelegate::Observer* observer) {
   observer_list_.RemoveObserver(observer);
 }