Merge "Do not show volume expander when there is no touch feature"

import android.app.Dialog;

import android.app.KeyguardManager;

import android.content.Context;

import android.content.pm.PackageManager;

import android.content.res.ColorStateList;

import android.content.res.Resources;

import android.graphics.Color;

                : R.drawable.ic_volume_expand_animation;

        if (res == mExpandButtonRes) return;

        mExpandButtonRes = res;

        if (hasTouchFeature()) {

            mExpandButton.setImageResource(res);

        } else {

            // if there is no touch feature, show the volume ringer instead

            mExpandButton.setImageResource(R.drawable.ic_volume_ringer);

            mExpandButton.setBackgroundResource(0);  // remove gray background emphasis

        }

        mExpandButton.setContentDescription(mContext.getString(mExpanded ?

                R.string.accessibility_volume_collapse : R.string.accessibility_volume_expand));

    }

        rescheduleTimeoutH();

    }

    private boolean hasTouchFeature() {

        final PackageManager pm = mContext.getPackageManager();

        return pm.hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN);

    }

    private final VolumeDialogController.Callbacks mControllerCallbackH

            = new VolumeDialogController.Callbacks() {

        @Override