fix(demo): allow switch between UITextDisplayer and SimpleTextDisplay…

…er (shaka-project#4275)

demo/main.js

@@ -1233,9 +1233,6 @@ shakaDemo.Main = class {
       // The currently-selected asset changed, so update asset cards.
       this.dispatchEventWithName_('shaka-main-selected-asset-changed');
 
-      await this.drmConfiguration_(asset);
-      this.controls_.getCastProxy().setAppData({'asset': asset});
-
       // Enable the correct set of controls before loading.
       // The video container influences the TextDisplayer used.
       if (this.nativeControlsEnabled_) {
@@ -1250,6 +1247,9 @@ shakaDemo.Main = class {
         this.player_.setVideoContainer(this.container_);
       }
 
+      await this.drmConfiguration_(asset);
+      this.controls_.getCastProxy().setAppData({'asset': asset});
+
       // Finally, the asset can be loaded.
       let manifestUri = asset.manifestUri;
       // If we have an offline copy, use that.  If the offlineUri field is null,