Do not show available bytes in media views.

ui/file_manager/file_manager/foreground/js/gear_menu_controller.js

Index: ui/file_manager/file_manager/foreground/js/gear_menu_controller.js
diff --git a/ui/file_manager/file_manager/foreground/js/gear_menu_controller.js b/ui/file_manager/file_manager/foreground/js/gear_menu_controller.js
index fc1bbbf65c1cbe222e4ac9e2daf8222b776f87c1..b0353565125a92d8aa214fefa59170cf7835ca43 100644
--- a/ui/file_manager/file_manager/foreground/js/gear_menu_controller.js
+++ b/ui/file_manager/file_manager/foreground/js/gear_menu_controller.js
@@ -91,7 +91,9 @@ GearMenuController.prototype.refreshRemainingSpace_ =
 
   // TODO(mtomasz): Add support for remaining space indication for provided
   // file systems.
-  if (currentVolumeInfo.volumeType == VolumeManagerCommon.VolumeType.PROVIDED) {
+  if (currentVolumeInfo.volumeType == VolumeManagerCommon.VolumeType.PROVIDED ||
+      currentVolumeInfo.volumeType ==
+          VolumeManagerCommon.VolumeType.MEDIA_VIEW) {
     this.gearMenu_.setSpaceInfo(null, false);
     return;
   }