Move the casting icon to media controls.

ui/file_manager/video_player/js/video_player.js

Index: ui/file_manager/video_player/js/video_player.js
diff --git a/ui/file_manager/video_player/js/video_player.js b/ui/file_manager/video_player/js/video_player.js
index ebbc09d75c14035f99f2d5a0f98ecb41b270a990..e1708101781aca64cbaeb89660492528c62a420e 100644
--- a/ui/file_manager/video_player/js/video_player.js
+++ b/ui/file_manager/video_player/js/video_player.js
@@ -217,15 +217,6 @@ VideoPlayer.prototype.prepare = function(videos) {
       }.wrap(null));
   closeButton.addEventListener('mousedown', preventDefault);
 
-  var castButton = document.querySelector('.cast-button');
-  cr.ui.decorate(castButton, cr.ui.MenuButton);
-  castButton.addEventListener(
-      'click',
-      function(event) {
-        event.stopPropagation();
-      }.wrap(null));
-  castButton.addEventListener('mousedown', preventDefault);
-
   var menu = document.querySelector('#cast-menu');
   cr.ui.decorate(menu, cr.ui.Menu);