Support multi-line braille in the virtual braille display.

chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <grit base_dir="." current_release="1" latest_public_release="0"
       output_all_resource_defines="false" enc_check="möl" source_lang_id="en">
   <outputs>
     <output filename="_locales/am/messages.json" type="chrome_messages_json" lang="am"/>
     <output filename="_locales/ar/messages.json" type="chrome_messages_json" lang="ar"/>
     <output filename="_locales/bg/messages.json" type="chrome_messages_json" lang="bg"/>
     <output filename="_locales/bn/messages.json" type="chrome_messages_json" lang="bn"/>
     <output filename="_locales/ca/messages.json" type="chrome_messages_json" lang="ca"/>
@@ skipping 420 matching lines @@
       </message>
       <message desc="The description of the announcePosition key. Displayed in the Options page." name="IDS_CHROMEVOX_ANNOUNCE_POSITION">
         Announces a brief description of the current position
       </message>
       <message desc="The description of the fullyDescribe key. Displayed in the Options page." name="IDS_CHROMEVOX_FULLY_DESCRIBE">
         Announces a complete description of the current position
       </message>
       <message desc="The title of the extension's options page." name="IDS_CHROMEVOX_OPTIONS_PAGE_TITLE">
         ChromeVox Options
       </message>
+      <message desc="An options page section header for options about the ChromeVox virtual display. This section lets users change the rows, columns, and display style of the virtual braille display." name="IDS_CHROMEVOX_OPTIONS_VIRTUAL_BRAILLE_DISPLAY">
+        Virtual Braille Display
+      </message>
+      <message desc="The label for a numberic input field where the user can choose the number of rows in a grid." name="IDS_CHROMEVOX_OPTIONS_VIRTUAL_BRAILLE_DISPLAY_ROWS">
+        Rows:
+      </message>
+      <message desc="The label for a numberic input field where the user can choose the number of columns in a grid." name="IDS_CHROMEVOX_OPTIONS_VIRTUAL_BRAILLE_DISPLAY_COLUMNS">
+        Columns:
+      </message>
+      <message desc="A description that tells the user that the current display style of the virtual display interleaves braille and regular text, one on top of the other." name="IDS_CHROMEVOX_OPTIONS_CURRENT_DISPLAY_STYLE_INTERLEAVE">
+        Current display style is interleave.
+      </message>
+      <message desc="A description that tells the user that the current display style of the virtual display is side by side, where regular text is on the left and braille is on the right." name="IDS_CHROMEVOX_OPTIONS_CURRENT_DISPLAY_STYLE_SIDE_BY_SIDE">
+        Current display style is side by side.
+      </message>
+      <message desc="Labels the change display style button when the display style is side by side. Pressing the button would make the text interleave with the braille cells, one on top of the other." name="IDS_CHROMEVOX_OPTIONS_CHANGE_CURRENT_DISPLAY_STYLE_INTERLEAVE">
+        Change display style to interleave.
+      </message>
+      <message desc="Labels the change display style button when the display style is interleave. Pressing the button would put all the text on the left side and all the braille cells on the right." name="IDS_CHROMEVOX_OPTIONS_CHANGE_CURRENT_DISPLAY_STYLE_SIDE_BY_SIDE">
+        Change display style to side by side.
+      </message>
       <message desc="The summary of the extension's options.  Shown at the top of the options page." name="IDS_CHROMEVOX_OPTIONS_PAGE_SUMMARY">
         Use the options below to customize ChromeVox. Changes take effect immediately.
       </message>
       <message desc="An option to enable the page focus following the mouse.  Focus represents the current HTML element or group of elements that are being spoken and can be acted upon.  There is also a visual UI which highlights the focused elements. * This key's action allows the user to change focus with the mouse.  Focus can also be changed using the ChromeVox navigation keys and an API." name="IDS_CHROMEVOX_OPTIONS_MOUSE_FOCUS_FOLLOWS">
         Use the mouse to change focus.
       </message>
       <message desc="An option to have an item's context placed at the beginning of its description. For example, reload button, toolbar would become, toolbar, reload button" name="IDS_CHROMEVOX_OPTIONS_OUTPUT_CONTEXT_FIRST">
         Display an item's context before other information (such as its name).
       </message>
       <message desc="An option to enhance the experience of specific sites such as Google Search." name="IDS_CHROMEVOX_OPTIONS_SITE_SPECIFIC_ENHANCEMENTS">
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       </message>
       <message desc="Title of an article on keyboard shortcuts for Chromebooks" name="IDS_CHROMEVOX_CHROME_KEYBOARD_SHORTCUTS">
         Chromebook keyboard shortcuts
       </message>
       <message desc="Title of an article on how to use accessibility features of the Chromebook touch screen" name="IDS_CHROMEVOX_TOUCHSCREEN_ACCESSIBILITY">
         Use Chromebook touch screen accessibility features
       </message>
     </messages>
   </release>
 </grit>