Fix cursor routing in single lined text fields

Update the documentation to run brltty on linux as well. This is sometimes hard to [re]discover.

Change-Id: Ia6cfefa2af9465762fc31c8077fec7310edca083
Reviewed-on: https://chromium-review.googlesource.com/c/1294512Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601811}

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

@@ -119,8 +119,7 @@ BrailleCommandHandler.onRoutingCommand_ = function(text, position) {
   actionNode.doDefault();
 
   if (actionNode.role != RoleType.STATIC_TEXT &&
-      actionNode.role != RoleType.TEXT_FIELD &&
-      !actionNode.state[StateType.RICHLY_EDITABLE])
+      !actionNode.state[StateType.EDITABLE])
     return;
 
   if (!selectionSpan)

docs/accessibility/chromevox_on_desktop_linux.md

@@ -119,6 +119,11 @@ Once built, Chrome and ChromeVox will use your machine’s running Brltty
 daemon to display braille if ChromeVox is running. Simply ensure you have a
 display connected before running Chrome and that Brltty is running.
 
+Note you may need to customize brltty.conf (typically found in /etc).
+In particular, the api-parameters Auth param may exclude the current user.
+You can turn this off by doing:
+api-parameters Auth=none
+
 Testing against the latest releases of Brltty (e.g. 5.4 at time of writing) is
 encouraged.