Send AndroidOverlay routing token from WMPI to AVDA.

media/base/media_switches.cc

Index: media/base/media_switches.cc
diff --git a/media/base/media_switches.cc b/media/base/media_switches.cc
index 7a13243900e84c2b0ca1d8ea0f288b1dad5c1483..da17dd5a42d88d1fd732d2be37e0665bb6a34b3d 100644
--- a/media/base/media_switches.cc
+++ b/media/base/media_switches.cc
@@ -194,6 +194,10 @@ const base::Feature kResumeBackgroundVideo {
 #endif
 };
 
+// Use AndroidOverlay rather than ContentVideoView in clank?
+const base::Feature kUseAndroidOverlay{"use-android_overlay",
+                                       base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Let video track be unselected when video is playing in the background.
 const base::Feature kBackgroundVideoTrackOptimization{
     "BackgroundVideoTrackOptimization", base::FEATURE_DISABLED_BY_DEFAULT};