FilesApp add android and linux as native volume types

This makes them available in the save-as dialog.

Bug: 845088
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I37dbb73a8de6a115e70a3bc8549b0e4351086bb6
Reviewed-on: https://chromium-review.googlesource.com/1098421Reviewed-by: Naoki Fukino <fukino@chromium.org>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566719}

ui/file_manager/file_manager/common/js/volume_manager_common.js

@@ -245,6 +245,8 @@ VolumeManagerCommon.Source = {
  */
 VolumeManagerCommon.VolumeType.isNative = function(type) {
   return type === VolumeManagerCommon.VolumeType.DOWNLOADS ||
+      type === VolumeManagerCommon.VolumeType.ANDROID_FILES ||
+      type === VolumeManagerCommon.VolumeType.CROSTINI ||
       type === VolumeManagerCommon.VolumeType.REMOVABLE ||
       type === VolumeManagerCommon.VolumeType.ARCHIVE;
 };