Fixed slide show in Files.app's gallery.

chrome/browser/resources/file_manager/js/media/video_player.js

Index: chrome/browser/resources/file_manager/js/media/video_player.js
diff --git a/chrome/browser/resources/file_manager/js/media/video_player.js b/chrome/browser/resources/file_manager/js/media/video_player.js
index a36160b288d003b220d66e4595823ac0885e9492..63aca6875e6c487526d2602e56af55710b3bd966 100644
--- a/chrome/browser/resources/file_manager/js/media/video_player.js
+++ b/chrome/browser/resources/file_manager/js/media/video_player.js
@@ -51,7 +51,7 @@ function FullWindowVideoControls(
   VideoControls.call(this,
       controlsContainer,
       onPlaybackError,
-      this.toggleFullscreen_.bind(this),
+      this.toggleFullScreen_.bind(this),
       videoContainer);
 
   this.playerContainer_ = playerContainer;
@@ -109,7 +109,7 @@ FullWindowVideoControls.prototype.restorePlayState = function() {
  * Toggles the full screen mode.
  * @private
  */
-FullWindowVideoControls.prototype.toggleFullscreen_ = function() {
+FullWindowVideoControls.prototype.toggleFullScreen_ = function() {
   util.toggleFullScreen(this.playerContainer_.ownerDocument,
                         !util.isFullScreen());
 };