Provide time and date feedback in braille

R=akihiroota@chromium.org

Fixed: 816631
AX-Relnotes: time and date (Search+a, d) feedback provided in braille as well as speech.
Change-Id: Ic0447e493ef88cca3f494534e8397370abf2d972
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2288090Reviewed-by: Akihiro Ota <akihiroota@chromium.org>
Commit-Queue: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#786606}

chrome/browser/resources/chromeos/accessibility/chromevox/background/background_test.js

@@ -2698,3 +2698,13 @@ TEST_F('ChromeVoxBackgroundTest', 'FocusOnUnknown', function() {
             .replay();
       });
 });
+
+TEST_F('ChromeVoxBackgroundTest', 'TimeDateCommand', function() {
+  const mockFeedback = this.createMockFeedback();
+  this.runWithLoadedTree('<p></p>', function(root) {
+    mockFeedback.call(doCmd('speakTimeAndDate'))
+        .expectSpeech(/(AM|PM)*(2)/)
+        .expectBraille(/(AM|PM)*(2)/)
+        .replay();
+  });
+});

chrome/browser/resources/chromeos/accessibility/chromevox/background/command_handler.js

@@ -88,6 +88,7 @@ CommandHandler.onCommand = function(command) {
         });
         if (timeString) {
           ChromeVox.tts.speak(timeString, QueueMode.FLUSH);
+          ChromeVox.braille.write(NavBraille.fromText(timeString));
         } else {
           // Fallback to the old way of speaking time.
           const output = new Output();