Do not use overlays when VR shell is enabled.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 8f75c8c80271d9285366d8ccd3a3188ed594ff00..de35e42f5b912a12e140a6561f8038b34a476c2c 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2798,11 +2798,14 @@ blink::WebMediaPlayer* RenderFrameImpl::createMediaPlayer(
   if (!url_index_.get() || url_index_->frame() != frame_)
     url_index_.reset(new media::UrlIndex(frame_));
 
+  // needs to be updated when we dynamically switch to vr
   media::WebMediaPlayerImpl* media_player = new media::WebMediaPlayerImpl(
       frame_, client, encrypted_client,
       GetWebMediaPlayerDelegate()->AsWeakPtr(),
       std::move(media_renderer_factory), url_index_, params);
 
+  media_player->SetInVr(render_view_->screen_info().in_vr);
+
 #if defined(OS_ANDROID)  // WMPI_CAST
   media_player->SetMediaPlayerManager(GetMediaPlayerManager());
   media_player->SetDeviceScaleFactor(render_view_->GetDeviceScaleFactor());