Move passing of WebRTC rendering frames to IO thread

content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc

Index: content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
diff --git a/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc b/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
index 73300eeaca28d47250b7ba2b576d41d2df0c6576..67fcc757008c040db5806298c4f6ca41cd995c66 100644
--- a/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
+++ b/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
@@ -44,7 +44,7 @@ TestMediaStreamRendererFactory::GetVideoRenderer(
     const blink::WebMediaStream& web_stream,
     const base::Closure& error_cb,
     const MediaStreamVideoRenderer::RepaintCB& repaint_cb,
-    const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
+    const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const scoped_refptr<base::TaskRunner>& worker_task_runner,
     media::GpuVideoAcceleratorFactories* gpu_factories) {