ChromeVox: Output selection status of listbox option items first.

Bug: 762746
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I77f2279247ffdf33790946f623ff4115b2752e0b
Reviewed-on: https://chromium-review.googlesource.com/715837Reviewed-by: David Tseng <dtseng@chromium.org>
Commit-Queue: Tatsuhisa Yamaguchi <yamaguchi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#509288}

chrome/browser/resources/chromeos/chromevox/cvox2/background/output.js

@@ -381,8 +381,8 @@ Output.RULES = {
           $restriction $description`
     },
     listBoxOption: {
-      speak: `$name $role @describe_index($posInSet, $setSize)
-          $description $state $restriction`
+      speak: `$state $name $role @describe_index($posInSet, $setSize)
+          $description $restriction`
     },
     listItem: {enter: `$name= $role $state $description`},
     listMarker: {speak: `$name`},