ChromeVox Options page: add link to TTS settings page.

options page.

Bug: 1009897
Change-Id: I32a2cda728933bf4e4e5d475a7f6b84dfe7b312b
AX-Relnotes: Add a link to the TTS settings page in the ChromeVox
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2213888Reviewed-by: David Tseng <dtseng@chromium.org>
Commit-Queue: Akihiro Ota <akihiroota@chromium.org>
Cr-Commit-Position: refs/heads/master@{#771993}

chrome/browser/resources/chromeos/accessibility/chromevox/options/options.html

@@ -148,6 +148,17 @@
              aria-labelledby="voiceSwitchingLabel">
   </div>
 
+  <div class="option">
+    <label>
+      <cr-link-row id="openTtsSettings"
+          using-slotted-label external embedded>
+        <span slot="label" class="i18n" msgid="show_tts_settings"></span>
+        <span slot="sub-label" class="i18n sub-description"
+            msgid="options_show_tts_settings"></span>
+      </cr-link-row>
+    </label>
+  </div>
+
   <div id="richTextIndicationOption">
     <h2 class="i18n" msgid="options_rich_text_header">Formatting</h2>
     <div class="option">

chrome/browser/resources/chromeos/accessibility/chromevox/options/options.js

@@ -119,6 +119,11 @@ OptionsPage = class {
       }
     });
 
+    $('openTtsSettings').addEventListener('click', (evt) => {
+      chrome.accessibilityPrivate.openSettingsSubpage(
+          'manageAccessibility/tts');
+    });
+
     $('enableAllEventStreamFilters').addEventListener('click', () => {
       OptionsPage.setAllEventStreamLoggingFilters(true);
     });

chrome/browser/resources/chromeos/accessibility/strings/chromevox_strings.grdp

@@ -380,7 +380,10 @@
     Show Log
   </message>
   <message desc="Keyboard shortcut to show the ChromeVox log." name="IDS_CHROMEVOX_OPTIONS_SHOW_LOG_KEY">
-    Search + O + W
+    Search + O, then W
+  </message>
+  <message desc="Keyboard shortcut to show the TTS settings page." name="IDS_CHROMEVOX_OPTIONS_SHOW_TTS_SETTINGS">
+    Search + O, then S. Use to install, manage, and customize voices.
   </message>
   <message desc="Show event stream filters options for event stream logging." name="IDS_CHROMEVOX_OPTIONS_SHOW_EVENT_STREAM_FILTERS">
     Show event stream filters