[Media Router] Don't show "Manage Cast Devices" in incognito mode.

chrome/browser/ui/toolbar/media_router_contextual_menu.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/toolbar/media_router_contextual_menu.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/metrics/user_metrics.h"
@@ skipping 56 matching lines @@
                                          gfx::kChromeIconGrey)));
   } else {
     menu_model_.AddCheckItemWithStringId(
         IDC_MEDIA_ROUTER_ALWAYS_SHOW_TOOLBAR_ACTION,
         IDS_MEDIA_ROUTER_ALWAYS_SHOW_TOOLBAR_ACTION);
   }
   menu_model_.AddItemWithStringId(IDC_MEDIA_ROUTER_SHOW_IN_TOOLBAR,
                                   GetChangeVisibilityTextId());
   menu_model_.AddSeparator(ui::NORMAL_SEPARATOR);
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
-  menu_model_.AddItemWithStringId(IDC_MEDIA_ROUTER_MANAGE_DEVICES,
-                                  IDS_MEDIA_ROUTER_MANAGE_DEVICES);
+  if (!browser_->profile()->IsOffTheRecord()) {
+    menu_model_.AddItemWithStringId(IDC_MEDIA_ROUTER_MANAGE_DEVICES,
+                                    IDS_MEDIA_ROUTER_MANAGE_DEVICES);
+  }
 #endif
   menu_model_.AddCheckItemWithStringId(IDC_MEDIA_ROUTER_CLOUD_SERVICES_TOGGLE,
                                        IDS_MEDIA_ROUTER_CLOUD_SERVICES_TOGGLE);
   menu_model_.AddItemWithStringId(IDC_MEDIA_ROUTER_REPORT_ISSUE,
                                   IDS_MEDIA_ROUTER_REPORT_ISSUE);
 }
 
 MediaRouterContextualMenu::~MediaRouterContextualMenu() {}
 
 bool MediaRouterContextualMenu::GetAlwaysShowActionPref() const {
@@ skipping 102 matching lines @@
                            std::string(url::kStandardSchemeSeparator) +
                            media_router->media_route_provider_extension_id() +
                            "/feedback.html");
   chrome::ShowSingletonTab(browser_, GURL(feedback_url));
 }
 
 int MediaRouterContextualMenu::GetChangeVisibilityTextId() {
   return is_action_in_toolbar_ ? IDS_EXTENSIONS_HIDE_BUTTON_IN_MENU
                                : IDS_EXTENSIONS_SHOW_BUTTON_IN_TOOLBAR;
 }