Add Accessibility settings to top-level.

Followup CL will prevent this from showing if TTY Mode and HAC are
not supported.

Bug: 19372734
Change-Id: I8f1e93efab6447d2099d5eb6e734704d6632e299
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1e7a48b..0730f42 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -698,6 +698,10 @@
          dialpad tones, and vibration for incoming calls. [CHAR LIMIT=40] -->
     <string name="sounds_and_vibration_title">Sounds and vibration</string>
 
+    <!-- Title for "Accessibility" category, which controls settings such as TTY mode and hearing
+         aid compatability. [CHAR LIMIT=40] -->
+    <string name="accessibility_settings_title">Accessibility</string>
+
     <!-- Setting option name to pick ringtone (a list dialog comes up). [CHAR LIMIT=30] -->
     <string name="ringtone_title">Phone ringtone</string>
 
diff --git a/src/com/android/dialer/settings/DialerSettingsActivity.java b/src/com/android/dialer/settings/DialerSettingsActivity.java
index 945ff48..ac74a10 100644
--- a/src/com/android/dialer/settings/DialerSettingsActivity.java
+++ b/src/com/android/dialer/settings/DialerSettingsActivity.java
@@ -77,6 +77,13 @@
                 target.add(phoneAccountSettingsHeader);
             }
         }
+
+        Header accessibilitySettingsHeader = new Header();
+        Intent accessibilitySettingsIntent =
+                new Intent(TelecomManager.ACTION_SHOW_CALL_ACCESSIBILITY_SETTINGS);
+        accessibilitySettingsHeader.titleRes = R.string.accessibility_settings_title;
+        accessibilitySettingsHeader.intent = accessibilitySettingsIntent;
+        target.add(accessibilitySettingsHeader);
     }
 
     @Override