Use dark theme for alerts if device is in dark mode

Use dark theme for alerts if device is in dark mode

Test: verified using system test
Bug: 185578417
Change-Id: Ibbd3abe838cdcdf7eaf40f820329b2fde99e0779
diff --git a/src/com/android/phone/CdmaCallWaitingPreference.java b/src/com/android/phone/CdmaCallWaitingPreference.java
index 3713b19..6ff47d2 100644
--- a/src/com/android/phone/CdmaCallWaitingPreference.java
+++ b/src/com/android/phone/CdmaCallWaitingPreference.java
@@ -78,7 +78,7 @@
     public void onClick() {
         super.onClick();
 
-        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
+        AlertDialog.Builder builder = FrameworksUtils.makeAlertDialogBuilder(mContext);
         builder.setTitle(mContext.getText(R.string.cdma_call_waiting));
         builder.setMessage(mContext.getText(R.string.enable_cdma_call_waiting_setting));
         builder.setPositiveButton(R.string.enable_cdma_cw, new DialogInterface.OnClickListener() {