Merge "Avoid NetInitiatedActivity overlaid by non-system apps" into sc-dev

package com.android.internal.app;

import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);

        // Set up the "dialog"

        final Intent intent = getIntent();

        final AlertController.AlertParams p = mAlertParams;