Migrate ResourceExtractor.java inside org.chromium.base package.

content/shell/android/browsertests_apk/src/org/chromium/content_browsertests_apk/ContentBrowserTestsApplication.java

 // Copyright 2012 The Chromium Authors. 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.chromium.content_browsertests_apk;
 
 import android.app.Application;
 
 import org.chromium.base.PathUtils;
-import org.chromium.content.browser.ResourceExtractor;
+import org.chromium.base.ResourceExtractor;
 
+/**
+ * A basic content browser tests {@link android.app.Application}.
+ */
 public class ContentBrowserTestsApplication extends Application {
 
     private static final String[] MANDATORY_PAK_FILES = new String[] {
         "content_shell.pak",
         "icudtl.dat"
     };
     private static final String PRIVATE_DATA_DIRECTORY_SUFFIX = "content_shell";
 
     @Override
     public void onCreate() {
         super.onCreate();
         initializeApplicationParameters();
     }
 
     public static void initializeApplicationParameters() {
         ResourceExtractor.setMandatoryPaksToExtract(MANDATORY_PAK_FILES);
         PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
     }
 
 }