components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/html_viewer/setup.h

Index: components/html_viewer/setup.h
diff --git a/components/html_viewer/setup.h b/components/html_viewer/setup.h
index c9528464696e53d1f6349a70fb160452250741d7..07e54d386ba31e02d090c01600c68fcff9ae9b37 100644
--- a/components/html_viewer/setup.h
+++ b/components/html_viewer/setup.h
@@ -59,8 +59,8 @@ class Setup {
 
   float device_pixel_ratio() const { return device_pixel_ratio_; }
 
-  scoped_refptr<base::MessageLoopProxy> compositor_thread() {
-    return compositor_thread_.message_loop_proxy();
+  scoped_refptr<base::SingleThreadTaskRunner> compositor_thread() {
+    return compositor_thread_.task_runner();
   }
 
   MediaFactory* media_factory() { return media_factory_.get(); }