Send enter / exit fullscreen signal to AVDA

media/blink/webmediaplayer_impl.h

Index: media/blink/webmediaplayer_impl.h
diff --git a/media/blink/webmediaplayer_impl.h b/media/blink/webmediaplayer_impl.h
index 8a6c51b9c487bbc5eb0baaec8cdbe351055fe592..5b0dd2977bcbf295982d14d3296abaed83e33344 100644
--- a/media/blink/webmediaplayer_impl.h
+++ b/media/blink/webmediaplayer_impl.h
@@ -259,9 +259,15 @@ class MEDIA_BLINK_EXPORT WebMediaPlayerImpl
   // AndroidOverlay, this is the routing token.
   bool HaveOverlayInfo();
 
-  // Send the overlay surface ID / routing token to the decoder if we have it
-  // and if it has been requested.
-  void MaybeSendOverlayInfoToDecoder();
+  // Send OverlayInfo to the decoder.  If |send_factory_info| is true, then this
+  // will include the surface ID / routing token.  Note that this may cause the
+  // decoder to change factories, since it probably doesn't de-duplicate these.
+  // We will also include the current fullscreen state.
+  //
+  // If we've requested but not yet received the factory info, or if there's
+  // no decoder-provided callback to send the overlay info, then this call will
+  // do nothing.
+  void MaybeSendOverlayInfoToDecoder(bool send_factory_info);
 
   void OnPipelineSuspended();
   void OnBeforePipelineResume();
@@ -775,11 +781,14 @@ class MEDIA_BLINK_EXPORT WebMediaPlayerImpl
   // Optional callback to request the routing token for AndroidOverlay.
   RequestRoutingTokenCallback request_routing_token_cb_;
 
-  // Routing token, if we have one.  No value if we have a request pending to
-  // get it via |request_routing_token_cb_|.  A has_value() is_empty() token
-  // indicates that we requested and received an empty token.  Note that we
-  // can't send an empty token via IPC, so we handle that specially.
-  base::Optional<base::UnguessableToken> overlay_routing_token_;
+  // Routing token, if we have one.  If |!overlay_routing_token_|, then we have
+  // requested but not yet received one.  If |overlay_routing_token_|, but
+  // |!(*overlay_routing_token_)|, then there is no routing token (i.e., do not
+  // use overlays).
+  base::Optional<OverlayInfo::RoutingToken> overlay_routing_token_;
+
+  // Is the player fullscreen?
+  bool is_fullscreen_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };