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

media/blink/webmediaplayer_cast_android.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Delete this file when WMPI_CAST is no longer needed.
 
 #ifndef MEDIA_BLINK_WEBMEDIAPLAYER_CAST_ANDROID_H_
 #define MEDIA_BLINK_WEBMEDIAPLAYER_CAST_ANDROID_H_
 
 #include "base/memory/weak_ptr.h"
@@ skipping 62 matching lines @@
 
   // Functions called when media player status changes.
   void OnConnectedToRemoteDevice(
       const std::string& remote_playback_message) override;
   void OnDisconnectedFromRemoteDevice() override;
   void OnCancelledRemotePlaybackRequest() override;
   void OnRemotePlaybackStarted() override;
   void OnDidExitFullscreen() override;
   void OnMediaPlayerPlay() override;
   void OnMediaPlayerPause() override;
-  void OnRemoteRouteAvailabilityChanged(bool routes_available) override;
+  void OnRemoteRouteAvailabilityChanged(
+      blink::WebRemotePlaybackAvailability availability) override;
 
   // Getters of playback state.
   // bool paused() const override;
 
   // True if the loaded media has a playable video track.
   // bool hasVideo() const override;
 
   // This function is called by the RendererMediaPlayerManager to pause the
   // video and release the media player and surface texture when we switch tabs.
   // However, the actual GlTexture is not released to keep the video screenshot.
@@ skipping 43 matching lines @@
 // Make a texture-backed video of the given size containing the given message.
 MEDIA_BLINK_EXPORT scoped_refptr<VideoFrame> MakeTextFrameForCast(
     const std::string& remote_playback_message,
     gfx::Size canvas_size,
     gfx::Size natural_size,
     const base::Callback<gpu::gles2::GLES2Interface*()>& context_3d_cb);
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_CAST_ANDROID_H_