Support CAST+WMPI on android

content/renderer/media/android/webmediaplayer_android.h

Index: content/renderer/media/android/webmediaplayer_android.h
diff --git a/content/renderer/media/android/webmediaplayer_android.h b/content/renderer/media/android/webmediaplayer_android.h
index 5e96e8384204889a052bbd593e9bc4f5c9d2aaf1..7a02b45cb1f15bb02e77d4188fd76ec80f51912e 100644
--- a/content/renderer/media/android/webmediaplayer_android.h
+++ b/content/renderer/media/android/webmediaplayer_android.h
@@ -18,10 +18,10 @@
 #include "base/time/default_tick_clock.h"
 #include "base/time/time.h"
 #include "cc/layers/video_frame_provider.h"
-#include "content/common/media/media_player_messages_enums_android.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/renderer/media/android/media_info_loader.h"
 #include "content/renderer/media/android/media_source_delegate.h"
+#include "content/renderer/media/android/renderer_media_player_manager.h"
 #include "content/renderer/media/android/stream_texture_factory.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "media/base/android/media_player_android.h"
@@ -81,7 +81,8 @@ class RendererMediaPlayerManager;
 class WebMediaPlayerAndroid : public blink::WebMediaPlayer,
                               public cc::VideoFrameProvider,
                               public RenderFrameObserver,
-                              public StreamTextureFactoryContextObserver {
+                              public StreamTextureFactoryContextObserver,
+                              public content::RendererMediaPlayerInterface {
  public:
   // Construct a WebMediaPlayerAndroid object. This class communicates with the
   // MediaPlayerAndroid object in the browser process through |proxy|.
@@ -221,7 +222,7 @@ class WebMediaPlayerAndroid : public blink::WebMediaPlayer,
   // 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.
-  void SuspendAndReleaseResources();
+  void SuspendAndReleaseResources() override;
 
   // RenderFrameObserver implementation.
   void OnDestruct() override;