Clean up KeyguardSecurityCallback documentation and add copyright header.

    boolean isVerifyUnlockOnly();

    /**

     * Call when user correctly enters their credentials

     * @param success

     * Call to report an unlock attempt.

     * @param success set to 'true' if user correctly entered security credentials.

     */

    void reportUnlockAttempt(boolean success);

/*

 * Copyright (C) 2014 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.keyguard;

import android.app.Activity;