Make the video layer visibility configurable in OverlayFullscreenVideo mode

third_party/WebKit/public/platform/WebMediaPlayer.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 87 matching lines @@
     enum LoadType {
         LoadTypeURL = 0,
         LoadTypeMediaSource = 1,
         LoadTypeMediaStream = 2,
         LoadTypeMax = LoadTypeMediaStream,
     };
 
     typedef WebString TrackId;
     enum TrackType { TextTrack, AudioTrack, VideoTrack };
 
+    // Overlay fullscreen video can work in these modes. VideoLayerVisible will
+    // leave the contents of the GraphicsLayer associated with the video element
+    // visible, whereas VideoLayerInvisible will hide it so that only the
+    // controls are visible.
+    enum class OverlayFullscreenVideoMode {
+        Disabled,
+        VideoLayerVisible,
+        VideoLayerInvisible,
+    };
+
     virtual ~WebMediaPlayer() { }
 
     virtual void load(LoadType, const WebMediaPlayerSource&, CORSMode) = 0;
 
     // Playback controls.
     virtual void play() = 0;
     virtual void pause() = 0;
     virtual bool supportsSave() const = 0;
     virtual void seek(double seconds) = 0;
     virtual void setRate(double) = 0;
@@ skipping 63 matching lines @@
         unsigned texture, int level, int xoffset, int yoffset, bool premultiplyAlpha,
         bool flipY) { return false; }
 
     virtual WebAudioSourceProvider* getAudioSourceProvider() { return nullptr; }
 
     virtual void setContentDecryptionModule(WebContentDecryptionModule* cdm, WebContentDecryptionModuleResult result) { result.completeWithError(WebContentDecryptionModuleExceptionNotSupportedError, 0, "ERROR"); }
 
     // Sets the poster image URL.
     virtual void setPoster(const WebURL& poster) { }
 
-    // Whether the WebMediaPlayer supports overlay fullscreen video mode. When
-    // this is true, the video layer will be removed from the layer tree when
-    // entering fullscreen, and the WebMediaPlayer is responsible for displaying
-    // the video in enteredFullscreen().
-    virtual bool supportsOverlayFullscreenVideo() { return false; }
+    // Which OverlayFullscreenVideoMode should be used in fullscren.
+    virtual OverlayFullscreenVideoMode getOverlayFullscreenVideoMode() { return OverlayFullscreenVideoMode::Disabled; }
     // Inform WebMediaPlayer when the element has entered/exited fullscreen.
     virtual void enteredFullscreen() { }
     virtual void exitedFullscreen() { }
 
     virtual void enabledAudioTracksChanged(const WebVector<TrackId>& enabledTrackIds) { }
     // |selectedTrackId| is null if no track is selected.
     virtual void selectedVideoTrackChanged(TrackId* selectedTrackId) { }
 };
 
 } // namespace blink
 
 #endif