[Video] Remove wrong DCHECK from EnableVideoTrackIfNeeded

media/blink/webmediaplayer_impl.cc

Index: media/blink/webmediaplayer_impl.cc
diff --git a/media/blink/webmediaplayer_impl.cc b/media/blink/webmediaplayer_impl.cc
index 71cfc3580dc8a49da32e1b4e2856bf1449ddc19a..e94d5e06b05c2f39e77a9c377af2e0446c4d1231 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -2181,8 +2181,6 @@ bool WebMediaPlayerImpl::IsBackgroundOptimizationCandidate() const {
 }
 
 void WebMediaPlayerImpl::EnableVideoTrackIfNeeded() {
-  DCHECK(!IsHidden());
-
   // Don't change video track while the pipeline is resuming or seeking.
   if (is_pipeline_resuming_ || seeking_)
     return;