Fix copyright header.

Change-Id: I8f14b4085fb1245f1616d1361629c3691c91a90f
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/PackageValidator.java b/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/PackageValidator.java
index c0089ab..9a33693 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/PackageValidator.java
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/PackageValidator.java
@@ -1,4 +1,18 @@
-// Copyright 2014 Google Inc. All Rights Reserved.
+/*
+ * Copyright (C) 2014 Google Inc. All Rights Reserved.
+ *
+ * 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.example.android.mediabrowserservice;
 
 import java.io.UnsupportedEncodingException;