Reordering MediaSessionAction seek backward/forward

third_party/WebKit/LayoutTests/media/mediasession/mojo/resources/mediasessionservice-mock.js

 /*
  * mediasessionservice-mock contains a mock implementation of MediaSessionService.
  */
 
 "use strict";
 
+var MediaSessionAction;
+
 function mojoString16ToJS(mojoString16) {
   return String.fromCharCode.apply(null, mojoString16.data);
 }
 
 function mojoImageToJS(mojoImage) {
   var src = mojoImage.src.url;
   var type = mojoString16ToJS(mojoImage.type);
   var sizes = "";
   for (var i = 0; i < mojoImage.sizes.length; i++) {
     if (i > 0)
@@ skipping 19 matching lines @@
   return new MediaMetadata({title: title, artist: artist, album: album, artwork: artwork});
 }
 
 let mediaSessionServiceMock = loadMojoModules(
     'mediaSessionServiceMock',
     ['third_party/WebKit/public/platform/modules/mediasession/media_session.mojom',
      'mojo/public/js/router',
     ]).then(mojo => {
       let [mediaSessionService, router] = mojo.modules;
 
+      MediaSessionAction = mediaSessionService.MediaSessionAction;
+
       class MediaSessionServiceMock {
         constructor(interfaceProvider) {
           interfaceProvider.addInterfaceOverrideForTesting(
               mediaSessionService.MediaSessionService.name,
               handle => this.connectMediaSessionService_(handle));
           this.interfaceProvider_ = interfaceProvider;
           this.pendingResponse_ = null;
         }
 
         connectMediaSessionService_(handle) {
@@ skipping 35 matching lines @@
           this.clientCallback_ = callback;
         }
 
         getClient() {
           return this.client_;
         }
       }
 
       return new MediaSessionServiceMock(mojo.frameInterfaces);
     });