Remove implicit conversions from scoped_refptr to T* in content/renderer/media/

content/renderer/media/video_capture_impl.cc

Index: content/renderer/media/video_capture_impl.cc
diff --git a/content/renderer/media/video_capture_impl.cc b/content/renderer/media/video_capture_impl.cc
index 1edc3d5d9f3168467daae4ca18e57c489aa1d353..bae0813bbae742623348f9b36aa056b730fbd334 100644
--- a/content/renderer/media/video_capture_impl.cc
+++ b/content/renderer/media/video_capture_impl.cc
@@ -199,7 +199,7 @@ void VideoCaptureImpl::OnBufferDestroyed(int buffer_id) {
   if (iter == client_buffers_.end())
     return;
 
-  DCHECK(!iter->second || iter->second->HasOneRef())
+  DCHECK(!iter->second.get() || iter->second->HasOneRef())
       << "Instructed to delete buffer we are still using.";
   client_buffers_.erase(iter);
 }