diff -up chromium-109.0.5414.74/chrome/browser/media/router/media_router_feature.cc.disable-GlobalMediaControlsCastStartStop chromium-109.0.5414.74/chrome/browser/media/router/media_router_feature.cc
--- chromium-109.0.5414.74/chrome/browser/media/router/media_router_feature.cc.disable-GlobalMediaControlsCastStartStop	2023-01-11 15:27:50.587737070 +0100
+++ chromium-109.0.5414.74/chrome/browser/media/router/media_router_feature.cc	2023-01-11 15:30:35.136829951 +0100
@@ -48,15 +48,9 @@ BASE_FEATURE(kMediaRemotingWithoutFullsc
              "MediaRemotingWithoutFullscreen",
              base::FEATURE_DISABLED_BY_DEFAULT);
 
-#if BUILDFLAG(IS_CHROMEOS)
 BASE_FEATURE(kGlobalMediaControlsCastStartStop,
              "GlobalMediaControlsCastStartStop",
              base::FEATURE_DISABLED_BY_DEFAULT);
-#else
-BASE_FEATURE(kGlobalMediaControlsCastStartStop,
-             "GlobalMediaControlsCastStartStop",
-             base::FEATURE_ENABLED_BY_DEFAULT);
-#endif  // BUILDFLAG(IS_CHROMEOS)
 
 #endif  // BUILDFLAG(IS_ANDROID)