Media Remoting: Add feature to control enabling Media Remoting.

media/base/media_switches.h

Index: media/base/media_switches.h
diff --git a/media/base/media_switches.h b/media/base/media_switches.h
index f7a2dba6af4b9a277f6e16d31976173226ab1398..22e55a68295b107f5e60cd5957e91895db6b6a4d 100644
--- a/media/base/media_switches.h
+++ b/media/base/media_switches.h
@@ -10,6 +10,7 @@
 #include "base/feature_list.h"
 #include "build/build_config.h"
 #include "media/base/media_export.h"
+#include "media/media_features.h"
 
 namespace switches {
 
@@ -91,6 +92,11 @@ MEDIA_EXPORT extern const base::Feature kExternalClearKeyForTesting;
 #if defined(OS_ANDROID)
 MEDIA_EXPORT extern const base::Feature kAndroidMediaPlayerRenderer;
 #endif  // defined(OS_ANDROID)
+
+#if BUILDFLAG(ENABLE_MEDIA_REMOTING)
+MEDIA_EXPORT extern const base::Feature kMediaRemoting;
+#endif  // BUILDFLAG(ENABLE_MEDIA_REMOTING)
+
 }  // namespace media
 
 #endif  // MEDIA_BASE_MEDIA_SWITCHES_H_