Fix bug 5186341 - Double Action bar when displayOptions is 0

import android.content.pm.PackageManager;

import android.content.pm.PackageManager.NameNotFoundException;

import android.content.res.Configuration;

import android.content.res.Resources;

import android.content.res.TypedArray;

import android.graphics.drawable.Drawable;

import android.os.Parcel;

import android.os.Parcelable;

import android.text.TextUtils;

import android.util.AttributeSet;

import android.util.DisplayMetrics;

import android.util.Log;

import android.view.CollapsibleActionView;

import android.view.Gravity;

import android.view.ViewGroup;

import android.view.ViewParent;

import android.view.Window;

import android.view.ViewGroup.LayoutParams;

import android.widget.AdapterView;

import android.widget.FrameLayout;

import android.widget.ImageView;

    private int mContentHeight;

    private int mNavigationMode;

    private int mDisplayOptions = ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_HOME_AS_UP;

    private int mDisplayOptions = -1;

    private CharSequence mTitle;

    private CharSequence mSubtitle;

    private Drawable mIcon;

    }

    public void setDisplayOptions(int options) {

        final int flagsChanged = options ^ mDisplayOptions;

        final int flagsChanged = mDisplayOptions == -1 ? -1 : options ^ mDisplayOptions;

        mDisplayOptions = options;

        if ((flagsChanged & DISPLAY_RELAYOUT_MASK) != 0) {

        }

        addView(mTitleLayout);

        if (mExpandedActionView != null) {

            // Don't show while in expanded mode

        if (mExpandedActionView != null ||

                (TextUtils.isEmpty(mTitle) && TextUtils.isEmpty(mSubtitle))) {

            // Don't show while in expanded mode or with empty text

            mTitleLayout.setVisibility(GONE);

        }

    }