[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 5ac86d7625add4051364efeef09063c760add03b..413b75aa29afb97046f0e2a0e414e3a2e9413731 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -2178,8 +2178,6 @@ 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;