Fix accessibility issues in AudioPlayer and VideoPlayer.

ui/file_manager/audio_player/js/audio_player.js

Index: ui/file_manager/audio_player/js/audio_player.js
diff --git a/ui/file_manager/audio_player/js/audio_player.js b/ui/file_manager/audio_player/js/audio_player.js
index ea5fd263e79f3d1029b001bd4c59e7779f09872e..fb09c33e3b2b86c8306634fa0f19c36327829fe8 100644
--- a/ui/file_manager/audio_player/js/audio_player.js
+++ b/ui/file_manager/audio_player/js/audio_player.js
@@ -68,6 +68,19 @@ function AudioPlayer(container) {
       this.offlineString_ = strings['AUDIO_OFFLINE'];
       AudioPlayer.TrackInfo.DEFAULT_ARTIST =
           strings['AUDIO_PLAYER_DEFAULT_ARTIST'];
+      // Pass translated labels to the AudioPlayerElement.
+      this.player_.ariaLabels = {
+        volumeSlider: strings['AUDIO_PLAYER_OPEN_VOLUME_SLIDER_BUTTON_LABEL'],
+        shuffle: strings['AUDIO_PLAYER_SHUFFLE_BUTTON_LABEL'],
+        repeat: strings['AUDIO_PLAYER_REPEAT_BUTTON_LABEL'],
+        previous: strings['MEDIA_PLAYER_PREVIOUS_BUTTON_LABEL'],
+        play: strings['MEDIA_PLAYER_PLAY_BUTTON_LABEL'],
+        pause: strings['MEDIA_PLAYER_PAUSE_BUTTON_LABEL'],
+        next: strings['MEDIA_PLAYER_NEXT_BUTTON_LABEL'],
+        volume: strings['AUDIO_PLAYER_OPEN_VOLUME_SLIDER_BUTTON_LABEL'],
+        playList: strings['AUDIO_PLAYER_OPEN_PLAY_LIST_BUTTON_LABEL'],
+        seekSlider: strings['MEDIA_PLAYER_SEEK_SLIDER_LABEL']
+      };
     }.bind(this));
 
     this.volumeManager_.addEventListener('externally-unmounted',