Improve braille related message descriptions and clean up message handling in Chromevox.

chrome/browser/resources/chromeos/chromevox/common/command_store.js

Index: chrome/browser/resources/chromeos/chromevox/common/command_store.js
diff --git a/chrome/browser/resources/chromeos/chromevox/common/command_store.js b/chrome/browser/resources/chromeos/chromevox/common/command_store.js
index d50fe47b9d869514f4945b47f7e2cec42ed7166d..05e0273193397fffe5774c21b0f7ccd5a39a8d7d 100644
--- a/chrome/browser/resources/chromeos/chromevox/common/command_store.js
+++ b/chrome/browser/resources/chromeos/chromevox/common/command_store.js
@@ -688,15 +688,15 @@ cvox.CommandStore.NODE_INFO_MAP = {
   'checkbox': {predicate: 'checkboxPredicate',
                forwardError: 'no_next_checkbox',
                backwardError: 'no_previous_checkbox',
-               typeMsg: 'aria_role_checkbox'},
+               typeMsg: 'role_checkbox'},
   'radio': {predicate: 'radioPredicate',
             forwardError: 'no_next_radio_button',
             backwardError: 'no_previous_radio_button',
-            typeMsg: 'aria_role_radio'},
+            typeMsg: 'role_radio'},
   'slider': {predicate: 'sliderPredicate',
              forwardError: 'no_next_slider',
              backwardError: 'no_previous_slider',
-             typeMsg: 'aria_role_slider'},
+             typeMsg: 'role_slider'},
   'graphic': {predicate: 'graphicPredicate',
               forwardError: 'no_next_graphic',
               backwardError: 'no_previous_graphic',
@@ -708,11 +708,11 @@ cvox.CommandStore.NODE_INFO_MAP = {
   'button': {predicate: 'buttonPredicate',
              forwardError: 'no_next_button',
              backwardError: 'no_previous_button',
-             typeMsg: 'aria_role_button'},
+             typeMsg: 'role_button'},
   'combobox': {predicate: 'comboBoxPredicate',
                forwardError: 'no_next_combo_box',
                backwardError: 'no_previous_combo_box',
-               typeMsg: 'aria_role_combobox'},
+               typeMsg: 'role_combobox'},
   'editText': {predicate: 'editTextPredicate',
                forwardError: 'no_next_edit_text',
                backwardError: 'no_previous_edit_text',
@@ -720,7 +720,7 @@ cvox.CommandStore.NODE_INFO_MAP = {
   'heading': {predicate: 'headingPredicate',
               forwardError: 'no_next_heading',
               backwardError: 'no_previous_heading',
-              typeMsg: 'aria_role_heading'},
+              typeMsg: 'role_heading'},
   'heading1': {predicate: 'heading1Predicate',
                forwardError: 'no_next_heading_1',
                backwardError: 'no_previous_heading_1'},
@@ -743,7 +743,7 @@ cvox.CommandStore.NODE_INFO_MAP = {
   'link': {predicate: 'linkPredicate',
            forwardError: 'no_next_link',
            backwardError: 'no_previous_link',
-           typeMsg: 'aria_role_link'},
+           typeMsg: 'role_link'},
   'table': {predicate: 'tablePredicate',
             forwardError: 'no_next_table',
             backwardError: 'no_previous_table',
@@ -751,19 +751,19 @@ cvox.CommandStore.NODE_INFO_MAP = {
   'visitedLink': {predicate: 'visitedLinkPredicate',
             forwardError: 'no_next_visited_link',
             backwardError: 'no_previous_visited_link',
-            typeMsg: 'tag_link'},
+            typeMsg: 'role_link'},
   'list': {predicate: 'listPredicate',
            forwardError: 'no_next_list',
            backwardError: 'no_previous_list',
-           typeMsg: 'aria_role_list'},
+           typeMsg: 'role_list'},
   'listItem': {predicate: 'listItemPredicate',
                forwardError: 'no_next_list_item',
                backwardError: 'no_previous_list_item',
-               typeMsg: 'aria_role_listitem'},
+               typeMsg: 'role_listitem'},
   'formField': {predicate: 'formFieldPredicate',
                 forwardError: 'no_next_form_field',
                 backwardError: 'no_previous_form_field',
-                typeMsg: 'aria_role_form'},
+                typeMsg: 'role_form'},
   'landmark': {predicate: 'landmarkPredicate',
                forwardError: 'no_next_landmark',
                backwardError: 'no_previous_landmark',