[Media Router] Add experiment control logic.

chrome/browser/ui/toolbar/app_menu_model.cc

Index: chrome/browser/ui/toolbar/app_menu_model.cc
diff --git a/chrome/browser/ui/toolbar/app_menu_model.cc b/chrome/browser/ui/toolbar/app_menu_model.cc
index 978e2ceaa13385fcf8596a6c90a13e716691ee57..0406161dd60b419a33373f093c5e5b1e5a34a896 100644
--- a/chrome/browser/ui/toolbar/app_menu_model.cc
+++ b/chrome/browser/ui/toolbar/app_menu_model.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/extensions/extension_util.h"
+#include "chrome/browser/media/router/media_router_feature.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ -879,8 +880,11 @@ void AppMenuModel::Build() {
 
   CreateZoomMenu();
   AddItemWithStringId(IDC_PRINT, IDS_PRINT);
-  if (switches::MediaRouterEnabled() && !browser()->profile()->IsOffTheRecord())
+  if (media_router::MediaRouterEnabled() &&
+      !browser()->profile()->IsOffTheRecord()) {
     AddItemWithStringId(IDC_ROUTE_MEDIA, IDS_MEDIA_ROUTER_MENU_ITEM_TITLE);
+  }
+
   AddItemWithStringId(IDC_FIND, IDS_FIND);
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableDomDistiller))