Video Player: Hide the cast icon on non-drive volume

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 398cae08ee601e6ac99683c525dc757a1c0c4889..57e6ca855ca71f108f7e35ef76b8cb2745b679cb 100644
--- a/ui/file_manager/video_player/js/video_player.js
+++ b/ui/file_manager/video_player/js/video_player.js
@@ -305,8 +305,6 @@ VideoPlayer.prototype.loadVideo_ = function(video, opt_callback) {
           document.querySelector('#thumbnail').style.backgroundImage = '';
         });
 
-    var media = new MediaManager(video.entry);
-
     var videoElementInitializePromise;
     if (this.currentCast_) {
       videoPlayerElement.setAttribute('casting', true);
@@ -316,6 +314,8 @@ VideoPlayer.prototype.loadVideo_ = function(video, opt_callback) {
       document.querySelector('#cast-name').textContent =
           this.currentCast_.friendlyName;
 
+      videoPlayerElement.setAttribute('castable', true);
+
       videoElementInitializePromise =
         media.isAvailableForCast().then(function(result) {
             if (!result)
@@ -340,6 +340,15 @@ VideoPlayer.prototype.loadVideo_ = function(video, opt_callback) {
       this.controls.attachMedia(this.videoElement_);
       this.videoElement_.src = video.url;
 
+      media.isAvailableForCast().then(function(result) {
+        if (result)
+          videoPlayerElement.setAttribute('castable', true);
+        else
+          videoPlayerElement.removeAttribute('castable');
+      }).catch(function() {
+        videoPlayerElement.setAttribute('castable', true);
+      });
+
       videoElementInitializePromise = Promise.resolve();
     }
 
@@ -493,14 +502,14 @@ VideoPlayer.prototype.onCastSelected_ = function(cast) {
  * @param {Array.<Object>} casts List of casts.
  */
 VideoPlayer.prototype.setCastList = function(casts) {
-  var button = document.querySelector('.cast-button');
+  var videoPlayerElement = document.querySelector('#video-player');
   var menu = document.querySelector('#cast-menu');
   menu.innerHTML = '';
 
   // TODO(yoshiki): Handle the case that the current cast disappears.
 
   if (casts.length === 0) {
-    button.classList.add('hidden');
+    videoPlayerElement.removeAttribute('cast-available');
     if (this.currentCast_)
       this.onCurrentCastDisappear_();
     return;
@@ -530,7 +539,7 @@ VideoPlayer.prototype.setCastList = function(casts) {
     menu.appendChild(item);
   }
   this.updateCheckOnCastMenu_();
-  button.classList.remove('hidden');
+  videoPlayerElement.setAttribute('cast-available', true);
 };
 
 /**