Fix double search icon in wifi calling page

- Moved fragments into wifi sub-package.
- Cleaned up inheritance for WifiCallingSettings
- Attach help and search action menu controller correctly.

Change-Id: I0bc8ab99df5d8c5ea64fb64de5ae70c2c9bd6f31
Fixes: 72958674
Test: robotest

src/com/android/settings/wifi/calling/WifiCallingSuggestionActivity.java

@@ -0,0 +1,34 @@
+/*
+ * 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.settings.wifi.calling;
+
+import android.content.Context;
+
+import com.android.ims.ImsManager;
+import com.android.settings.SettingsActivity;
+
+public class WifiCallingSuggestionActivity extends SettingsActivity {
+
+    public static boolean isSuggestionComplete(Context context) {
+        if (!ImsManager.isWfcEnabledByPlatform(context) ||
+                !ImsManager.isWfcProvisionedOnDevice(context)) {
+            return true;
+        }
+        return ImsManager.isWfcEnabledByUser(context)
+                && ImsManager.isNonTtyOrTtyOnVolteEnabled(context);
+    }
+}