mash: Change CastConfigDelegate to a mojoified CastConfigClient.

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc

Index: chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
diff --git a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
index a8579f5732e0adf4cece66fc93760e89c74205dc..df8db2b5ab7d4c3107d066340ee589eef182f542 100644
--- a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
+++ b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
@@ -14,6 +14,7 @@
 #include "chrome/browser/chrome_browser_main.h"
 #include "chrome/browser/ui/ash/ash_init.h"
 #include "chrome/browser/ui/ash/ash_util.h"
+#include "chrome/browser/ui/ash/cast_config_client_media_router.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.h"
 #include "chrome/browser/ui/views/ash/tab_scrubber.h"
 #include "chrome/browser/ui/views/frame/immersive_context_mus.h"
@@ -67,6 +68,9 @@ void ChromeBrowserMainExtraPartsAsh::PostProfileInit() {
     chrome_launcher_controller_mus_->Init();
   }
 
+  cast_config_client_media_router_ =
+      base::MakeUnique<CastConfigClientMediaRouter>();
+
   if (!ash::Shell::HasInstance())
     return;
 
@@ -82,6 +86,7 @@ void ChromeBrowserMainExtraPartsAsh::PostMainMessageLoopRun() {
 #if defined(OS_CHROMEOS)
   vpn_list_forwarder_.reset();
   system_tray_client_.reset();
+  cast_config_client_media_router_.reset();
 #endif
   chrome::CloseAsh();
 }