Add a button to open TalkBack settings in chrome://settings.

chrome/browser/ui/webui/options/browser_options_handler.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/options/browser_options_handler.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <utility>
@@ skipping 412 matching lines @@
     { "accessibilitySelectToSpeak",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SELECT_TO_SPEAK_DESCRIPTION },
     { "accessibilitySettings",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SETTINGS },
     { "accessibilitySpokenFeedback",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SPOKEN_FEEDBACK_DESCRIPTION },
     { "accessibilityStickyKeys",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_STICKY_KEYS_DESCRIPTION },
     { "accessibilitySwitchAccess",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_SWITCH_ACCESS_DESCRIPTION },
+    { "accessibilityTalkBackSettings",
+      IDS_OPTIONS_SETTINGS_ACCESSIBILITY_TALKBACK_SETTINGS },
     { "accessibilityTapDragging",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_TOUCHPAD_TAP_DRAGGING_DESCRIPTION },
     { "accessibilityVirtualKeyboard",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_VIRTUAL_KEYBOARD_DESCRIPTION },
     { "accessibilityMonoAudio",
       IDS_OPTIONS_SETTINGS_ACCESSIBILITY_MONO_AUDIO_DESCRIPTION},
     { "androidAppsTitle", IDS_OPTIONS_ARC_TITLE },
     { "androidAppsEnabled", IDS_OPTIONS_ARC_ENABLE },
     { "androidAppsSettingsLabel", IDS_OPTIONS_ARC_MANAGE_APPS },
     { "arcOptOutConfirmOverlayTabTitle", IDS_ARC_OPT_OUT_TAB_TITLE },
@@ skipping 350 matching lines @@
        base::Bind(&BrowserOptionsHandler::OnPowerwashDialogShow,
                   base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "performFactoryResetRestart",
       base::Bind(&BrowserOptionsHandler::PerformFactoryResetRestart,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "showAndroidAppsSettings",
       base::Bind(&BrowserOptionsHandler::ShowAndroidAppsSettings,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "showAccessibilityTalkBackSettings",
+      base::Bind(&BrowserOptionsHandler::ShowAccessibilityTalkBackSettings,
+                 base::Unretained(this)));
 #else
   web_ui()->RegisterMessageCallback(
       "becomeDefaultBrowser",
       base::Bind(&BrowserOptionsHandler::BecomeDefaultBrowser,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "restartBrowser",
       base::Bind(&BrowserOptionsHandler::HandleRestartBrowser,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
@@ skipping 1114 matching lines @@
   Profile* profile = Profile::FromWebUI(web_ui());
   // Settings in secondary profile cannot access ARC.
   if (!arc::ArcAuthService::IsAllowedForProfile(profile)) {
     LOG(ERROR) << "Settings can't be invoked for non-primary profile";
     return;
   }
 
   arc::LaunchAndroidSettingsApp(profile);
 }
 
+void BrowserOptionsHandler::ShowAccessibilityTalkBackSettings(
+    const base::ListValue *args) {
+  Profile* profile = Profile::FromWebUI(web_ui());
+  // Settings in secondary profile cannot access ARC.
+  if (!arc::ArcAuthService::IsAllowedForProfile(profile)) {
+    LOG(ERROR) << "Settings can't be invoked for non-primary profile";

[stevenjb, 2016/08/08 22:41:03]

Can this legitimately happen? If so it should just be a warning or vlog even. If
not it should be a DCHECK.

[yhanada, 2016/08/09 06:29:40]

I changed it to LOG(WARNING). Done.

+    return;
+  }
+
+  arc::ShowTalkBackSettings();
+}
+
 void BrowserOptionsHandler::SetupAccessibilityFeatures() {
   PrefService* pref_service = g_browser_process->local_state();
   base::FundamentalValue virtual_keyboard_enabled(
       pref_service->GetBoolean(prefs::kAccessibilityVirtualKeyboardEnabled));
   web_ui()->CallJavascriptFunctionUnsafe(
       "BrowserOptions.setVirtualKeyboardCheckboxState",
       virtual_keyboard_enabled);
 }
 #endif
 
@@ skipping 253 matching lines @@
 
 bool BrowserOptionsHandler::IsDeviceOwnerProfile() {
 #if defined(OS_CHROMEOS)
   return chromeos::ProfileHelper::IsOwnerProfile(Profile::FromWebUI(web_ui()));
 #else
   return true;
 #endif
 }
 
 }  // namespace options