Fix underflow correction occurring during normal rendering.

media/renderers/video_renderer_impl.h

Index: media/renderers/video_renderer_impl.h
diff --git a/media/renderers/video_renderer_impl.h b/media/renderers/video_renderer_impl.h
index 3ca8cc57d4688b8a20c3675eb6d5d7bb68547368..4268f19635936f5f19a1556dd476f3911b38ff03 100644
--- a/media/renderers/video_renderer_impl.h
+++ b/media/renderers/video_renderer_impl.h
@@ -79,6 +79,9 @@ class MEDIA_EXPORT VideoRendererImpl
   size_t frames_queued_for_testing() const {
     return algorithm_->frames_queued();
   }
+  size_t effective_frames_queued_for_testing() const {
+    return algorithm_->effective_frames_queued();
+  }
 
   // VideoRendererSink::RenderCallback implementation.
   scoped_refptr<VideoFrame> Render(base::TimeTicks deadline_min,