Add simulator to manually override voicemail carrier configs

This allow new carriers to test their values or help debug/QA for situations like disabling prefetch.

Bug: 63013427
Test: N/A use at your own risk.
PiperOrigin-RevId: 162003756
Change-Id: Ifb227163bc3f2a94c1c07cc60fdc3a031fd625c8
diff --git a/java/com/android/voicemail/VoicemailSecretCodeReceiver.java b/java/com/android/voicemail/VoicemailSecretCodeReceiver.java
new file mode 100644
index 0000000..6d14241
--- /dev/null
+++ b/java/com/android/voicemail/VoicemailSecretCodeReceiver.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.voicemail;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import com.android.dialer.common.LogUtil;
+
+/** Receives android.provider.Telephony.SECRET_CODE */
+public class VoicemailSecretCodeReceiver extends BroadcastReceiver {
+
+  @Override
+  public void onReceive(Context context, Intent intent) {
+    String host = intent.getData().getHost();
+    if (!VoicemailClient.VOICEMAIL_SECRET_CODE.equals(host)) {
+      return;
+    }
+    LogUtil.i("VoicemailSecretCodeReceiver.onReceive", "secret code received");
+    VoicemailComponent.get(context).getVoicemailClient().showConfigUi(context);
+  }
+}