Remove media::BindToLoop() in favour of media::BindToCurrentLoop().

media/base/text_renderer.cc

Index: media/base/text_renderer.cc
diff --git a/media/base/text_renderer.cc b/media/base/text_renderer.cc
index cee6fd99e73d86e12ce18b33f63bc220a323bfff..9eceac74156ff4761a533adffe6e9ce2f97c9295 100644
--- a/media/base/text_renderer.cc
+++ b/media/base/text_renderer.cc
@@ -126,11 +126,8 @@ void TextRenderer::AddTextStream(DemuxerStream* text_stream,
   DCHECK(pending_eos_set_.find(text_stream) ==
          pending_eos_set_.end());
 
-  media::AddTextTrackDoneCB done_cb =
-      media::BindToLoop(task_runner_,
-                        base::Bind(&TextRenderer::OnAddTextTrackDone,
-                                   weak_this_,
-                                   text_stream));
+  AddTextTrackDoneCB done_cb = BindToCurrentLoop(
+      base::Bind(&TextRenderer::OnAddTextTrackDone, weak_this_, text_stream));
 
   add_text_track_cb_.Run(config, done_cb);
 }