Add keyboard explorer improvements for braille

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 180 matching lines @@
       </message>
       <message desc="The description of the help key. Displayed in the Options page." name="IDS_CHROMEVOX_HELP">
         Open ChromeVox tutorial
       </message>
       <message desc="The description of the toggleSearchWidget key. Displayed in the Options page." name="IDS_CHROMEVOX_TOGGLE_SEARCH_WIDGET">
         ChromeVox find in page
       </message>
       <message desc="The description of the showOptionsPage key. Displayed in the Options page." name="IDS_CHROMEVOX_SHOW_OPTIONS_PAGE">
         Open options page
       </message>
-      <message desc="The description of the showKbExplorerPage key. Displayed in the Options page." name="IDS_CHROMEVOX_SHOW_KB_EXPLORER_PAGE">
-        Open keyboard explorer
+      <message desc="The description of the showKbExplorerPage key; this allows users to learn about their keyboard. Displayed in the Options page." name="IDS_CHROMEVOX_SHOW_KB_EXPLORER_PAGE">
+        Open learn mode
       </message>
       <message desc="The description of the decreaseTtsRate key. Displayed in the Options page." name="IDS_CHROMEVOX_DECREASE_TTS_RATE">
         Decrease rate of speech
       </message>
       <message desc="The description of the increaseTtsRate key. Displayed in the Options page." name="IDS_CHROMEVOX_INCREASE_TTS_RATE">
         Increase rate of speech
       </message>
       <message desc="The description of the decreaseTtsPitch key.  This key's action is passed to the text-to-speech voice engine and controls the voice's pitch. c.f. http://en.wikipedia.org/wiki/Pitch_(music) Displayed in the Options page." name="IDS_CHROMEVOX_DECREASE_TTS_PITCH">
         Decrease pitch
       </message>
@@ skipping 308 matching lines @@
       </message>
       <message desc="Labels the keyboard shortcut section." name="IDS_CHROMEVOX_OPTIONS_SHORTCUTS_DESCRIPTION">
         Customize keyboard shortcuts for frequently used commands by typing them into the corresponding fields below.
       </message>
       <message desc="An options page section header for the modifier key section." name="IDS_CHROMEVOX_OPTIONS_MODIFIER_KEYS">
         Modifier keys
       </message>
       <message desc="An option for setting the key combination that will be used as the ChromeVox modifier key (aka, the 'Cvox' key)." name="IDS_CHROMEVOX_OPTIONS_CVOX_MODIFIER_KEY">
         ChromeVox modifier key
       </message>
-      <message desc="The title of the ChromeOS Keyboard explorer page.  The keyboard explorer voices the name of each key when the user presses it." name="IDS_CHROMEVOX_KBEXPLORER_TITLE">
-        ChromeOS Keyboard Explorer
+      <message desc="The title of ChromeVox Learn Mode page.  The keyboard explorer voices the name of each key when the user presses it." name="IDS_CHROMEVOX_KBEXPLORER_TITLE">
+        ChromeVox Learn Mode
       </message>
-      <message desc="The instructions for the keyboard explorer.  The keyboard explorer voices the name of each key when the user presses it. * These instructions describe how to use the keyboard explorer." name="IDS_CHROMEVOX_KBEXPLORER_INSTRUCTIONS">
-        Press any key to learn its name. Ctrl+W will close the keyboard explorer.
+      <message desc="The instructions for ChromeVox Learn Mode.  The keyboard explorer voices the name of each key when the user presses it. * These instructions describe how to use the keyboard explorer." name="IDS_CHROMEVOX_KBEXPLORER_INSTRUCTIONS">
+        Press any key to learn its name. Ctrl+W will close learn mode.
       </message>
       <message desc="Spoken when a new Chrome tab named 'title' is opened." name="IDS_CHROMEVOX_CHROME_TAB_CREATED">
         tab created
       </message>
       <message desc="Spoken when the user changes to different tab showing the 'title' page." name="IDS_CHROMEVOX_CHROME_TAB_SELECTED">
         <ph name="title">$1</ph>, tab
       </message>
       <message desc="Spoken when the user changes to a different normal window showing the 'title' page." name="IDS_CHROMEVOX_CHROME_NORMAL_WINDOW_SELECTED">
         window <ph name="title">$1</ph> tab
       </message>
@@ skipping 1746 matching lines @@
       <message desc="Tab (\t) character description." name="IDS_CHROMEVOX_TAB">
         {COUNT, plural, =1 {tab}other {# tabs}}
       </message>
       <message desc="Backslash (\) character description." name="IDS_CHROMEVOX_BACKSLASH">
         {COUNT, plural, =1 {backslash}other {# backslashes}}
       </message>
       <message desc="BULLET (•) character description." name="IDS_CHROMEVOX_BULLET">
         {COUNT, plural, =1 {bullet}other {# bullets}}
       </message>
       <message desc="Describes the braille click command. Displayed in the options page." name="IDS_CHROMEVOX_BRAILLE_ROUTING">
-        Click the item under a routing key
+        Click the item under routing key $1
       </message>
       <message desc="Describes the braille pan backward command. Displayed in the options page." name="IDS_CHROMEVOX_BRAILLE_PAN_LEFT">
         Pan backward
       </message>
       <message desc="Describes the braille pan forward command. Displayed in the options page." name="IDS_CHROMEVOX_BRAILLE_PAN_RIGHT">
         Pan forward
       </message>
       <message desc="The description of the braille previous line command.  Displayed in the Options page." name="IDS_CHROMEVOX_BRAILLE_LINE_UP">
         Braille previous Line
       </message>
       <message desc="The description of the braille next line command.  Displayed in the Options page." name="IDS_CHROMEVOX_BRAILLE_LINE_DOWN">
         Braille next Line
       </message>
       <message desc="The description of the braille top command.  Displayed in the Options page." name="IDS_CHROMEVOX_BRAILLE_TOP">
         Move braille display to top of page
       </message>
       <message desc="The description of the braille bottom command.  Displayed in the Options page." name="IDS_CHROMEVOX_BRAILLE_BOTTOM">
         Move braille display to bottom of page
       </message>
+      <message desc="Describes a single physical braille dot on a refreshable braille display.  Will usually be followed with numbers to describe the layout of a braille cell. For example, dot 8" name="IDS_CHROMEVOX_BRAILLE_DOT">
+        dot <ph name="dot">$1</ph>
+      </message>
+      <message desc="Describes multiple physical braille dots on a refreshable braille display.  Will usually be followed with numbers to describe the layout of a braille cell. For example, dots 1 2 3 4 8" name="IDS_CHROMEVOX_BRAILLE_DOTS">
+        dots <ph name="dot">$1</ph>
+      </message>
+      <message desc="Describes dots on a refreshable braille display pressed with the space key. For example, dots 1 2 3 4 8 chord" name="IDS_CHROMEVOX_BRAILLE_CHORD">
+        $1 chord
+      </message>
       <message desc="Spoken to describe an access key.  An access key consists of a single letter. When pressed along with a modifier (usually alt, but depends on platform), a targetted node will be activated." name="IDS_CHROMEVOX_ACCESS_KEY">
         has access key, <ph name="key">$1</ph>
       </message>
       <message desc="Brailled to describe an access key. An access key consists of a single letter. When pressed along with a modifier (usually alt, but depends on platform), a targetted node will be activated. When translating, stick to lower case." name="IDS_CHROMEVOX_ACCESS_KEY_BRL">
         access key:<ph name="key">$1</ph>
       </message>
       <message desc="A dictionary mapping locale identifiers to their corresponding language names. The format is the following: { ..., 'en_US': 'English (United States)', ...}. Translation only needed for the language and country names (e.g. English (United States)). All other strings must be kept as is." name="IDS_CHROMEVOX_LOCALE_DICT">
         {"ar": "Arabic",
         "bg": "Bulgarian",
         "ca": "Catalan",
@@ skipping 282 matching lines @@
       </message>
       <message desc="Describes a UI element invoked after pressing enter such as an ok button in a dialog" name="IDS_CHROMEVOX_DEFAULT_STATE">
         default
       </message>
       <message desc="Brailles for a UI element invoked after pressing enter such as an ok button in a dialog" name="IDS_CHROMEVOX_DEFAULT_STATE_BRL">
         default
       </message>
     </messages>
   </release>
 </grit>