[RemotePlayback] Keep track of source compatibility and reject prompt() correspondingly

content/common/media/media_player_messages_android.h

Index: content/common/media/media_player_messages_android.h
diff --git a/content/common/media/media_player_messages_android.h b/content/common/media/media_player_messages_android.h
index 9e02b9b948e9effc4212fec234400b09b83fc709..d7b93e61654594d3ebf31fa047cac7f61d37c85b 100644
--- a/content/common/media/media_player_messages_android.h
+++ b/content/common/media/media_player_messages_android.h
@@ -10,6 +10,7 @@
 #include "ipc/ipc_message_macros.h"
 #include "media/blink/renderer_media_player_interface.h"
 #include "media/gpu/ipc/common/media_param_traits.h"
+#include "third_party/WebKit/public/platform/modules/remoteplayback/WebRemotePlaybackAvailability.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "url/gurl.h"
 
@@ -20,6 +21,9 @@
 IPC_ENUM_TRAITS_MAX_VALUE(MediaPlayerHostMsg_Initialize_Type,
                           MEDIA_PLAYER_TYPE_LAST)
 
+IPC_ENUM_TRAITS_MAX_VALUE(blink::WebRemotePlaybackAvailability,
+                          blink::WebRemotePlaybackAvailability::Last)
+
 // Parameters to describe a media player
 IPC_STRUCT_BEGIN(MediaPlayerHostMsg_Initialize_Params)
   IPC_STRUCT_MEMBER(MediaPlayerHostMsg_Initialize_Type, type)
@@ -131,7 +135,7 @@ IPC_MESSAGE_ROUTED1(MediaPlayerMsg_CancelledRemotePlaybackRequest,
 // The availability of remote devices has changed
 IPC_MESSAGE_ROUTED2(MediaPlayerMsg_RemoteRouteAvailabilityChanged,
                     int /* player_id */,
-                    bool /* routes_available */)
+                    blink::WebRemotePlaybackAvailability /* availability */)
 
 // Messages for controlling the media playback in browser process ----------