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 f68bb2e5666f71404361907fd889992464b5d5cf..711ab97a05cebf62f899ff52f5f6b1ea04982a13 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2859,6 +2859,10 @@ blink::WebMediaPlayer* RenderFrameImpl::createMediaPlayer(
       GetWebMediaPlayerDelegate()->AsWeakPtr(),
       std::move(media_renderer_factory), url_index_, params);
 
+  // TODO(amp): Update media player dynamically if it was started before
+  // entering VR (in which case is_virtual will be false).
+  media_player->SetInVr(render_view_->screen_info().is_virtual);
+
 #if defined(OS_ANDROID)  // WMPI_CAST
   media_player->SetMediaPlayerManager(GetMediaPlayerManager());
   media_player->SetDeviceScaleFactor(render_view_->GetDeviceScaleFactor());