Trying to get chromium command line switches to work with crosswalk-21.51.546.6

TestcrosswalkActivity.java

// Copyright (c) 2013 Intel Corporation. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.medicmobile.testcrosswalk;

import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.view.WindowManager;
import android.view.View;
import android.widget.TextView;

import org.xwalk.app.XWalkRuntimeActivityBase;
import org.xwalk.core.XWalkPreferences;

import org.chromium.base.CommandLine;

public class Testcrosswalk2Activity extends XWalkRuntimeActivityBase {
    private final int SYSTEM_UI_OPTIONS = View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
            View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
            View.SYSTEM_UI_FLAG_FULLSCREEN |
            View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
    private final String TAG = this.getClass().getName();
    static final String INIT_SWITCHES[] = { "Xwalk", "--user-agent=anonymous" };
    //static final String INIT_SWITCHES[] = { "Xwalk", "--unlimited-storage" };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        XWalkPreferences.setValue(XWalkPreferences.REMOTE_DEBUGGING, true);
        if (!CommandLine.isInitialized()) {
            CommandLine.init(INIT_SWITCHES);
            Log.w(TAG, "===============================");
            Log.w(TAG, "Using command line switches!");
            Log.w(TAG, "===============================");
        } else {
            Log.w(TAG, "===============================");
            Log.w(TAG, "Not using command line switches");
            Log.w(TAG, "===============================");
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        enterFullscreen();
    }

    @Override
    protected void didTryLoadRuntimeView(View runtimeView) {
        if (runtimeView != null) {
            getRuntimeView().loadAppFromManifest("file:///android_asset/www/manifest.json");
        } else {
            TextView msgText = new TextView(this);
            msgText.setText("Crosswalk failed to initialize.");
            msgText.setTextSize(36);
            msgText.setTextColor(Color.BLACK);
            setContentView(msgText);
        }
    }

    private void enterFullscreen() {
        if (isNewerThanKitkat() && ((getWindow().getAttributes().flags &
                WindowManager.LayoutParams.FLAG_FULLSCREEN) != 0)) {
            View decorView = getWindow().getDecorView();
            decorView.setSystemUiVisibility(SYSTEM_UI_OPTIONS);
        }
    }

    public void setIsFullscreen(boolean isFullscreen) {
        if (!isFullscreen) return;
        if (!isNewerThanKitkat()) {
            Log.w(TAG, "setIsFullscreen() should not be called if " +
                    "android version is older than Kitkat.");
            return;
        }

        setSystemUiVisibilityChangeListener();
    }

    private void setSystemUiVisibilityChangeListener() {
        final View decorView = getWindow().getDecorView();
        decorView.setOnSystemUiVisibilityChangeListener(
            new View.OnSystemUiVisibilityChangeListener() {
                @Override
                public void onSystemUiVisibilityChange(int visibility) {
                    if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
                        decorView.setSystemUiVisibility(SYSTEM_UI_OPTIONS);
                    }
                }
            }
        );
    }

    private boolean isNewerThanKitkat() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
    }
}

I see the "Using command line switches!" in the log which is a good sign but window.navigator.userAgent shows no change in the console. The goal is to get the --unlimited-storage flag to work, but any chromium command line switch I try seems to fail.