Don't show media controls when there is a persistent video.

content/browser/renderer_host/render_view_host_delegate.h

Index: content/browser/renderer_host/render_view_host_delegate.h
diff --git a/content/browser/renderer_host/render_view_host_delegate.h b/content/browser/renderer_host/render_view_host_delegate.h
index 7dc40c3f33ae1af42f995ea5932d3bf06e74dee7..a42e9b7cb89068ab51c2163613ccccd265ccf0f4 100644
--- a/content/browser/renderer_host/render_view_host_delegate.h
+++ b/content/browser/renderer_host/render_view_host_delegate.h
@@ -185,6 +185,9 @@ class CONTENT_EXPORT RenderViewHostDelegate {
   // Whether download UI should be hidden.
   virtual bool HideDownloadUI() const;
 
+  // Returns whether the WebContonts as a persisent video.

[whywhat, 2017/02/13 19:28:49]

nit: s/WebContonts/WebContents; s/persisent/persistent; s/Returns
whether/Whether

[mlamouri (slow - plz ping), 2017/02/14 11:19:46]

Done.

+  virtual bool HasPersistentVideo() const;
+
  protected:
   virtual ~RenderViewHostDelegate() {}
 };