Issue 6265 - Create shared AdblockEngine instance in AdblockWebView in background

libadblockplus-android-webviewapp/src/org/adblockplus/libadblockplus/android/webviewapp/MainActivity.java

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 20 matching lines @@
 import android.webkit.WebViewClient;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.ProgressBar;
 
 public class MainActivity extends Activity
 {
   public static final boolean DEVELOPMENT_BUILD = true;
 
   // webView can create AdblockEngine instance itself if not passed with `webView.setAdblockEngine()`
-  public static final boolean USE_EXTERNAL_ADBLOCKENGINE = false;
+  public static final boolean USE_EXTERNAL_ADBLOCKENGINE = true;
 
   private ProgressBar progress;
   private EditText url;
   private Button ok;
   private Button back;
   private Button forward;
   private Button settings;
 
   private AdblockWebView webView;
 
@@ skipping 140 matching lines @@
   private void navigateSettings()
   {
     startActivity(new Intent(this, SettingsActivity.class));
   }
 
   private void initAdblockWebView()
   {
     if (USE_EXTERNAL_ADBLOCKENGINE)
     {
       // external AdblockEngine
-      webView.setAdblockEngineProvider(AdblockHelper.get().getAdblockEngineProvider());
+      webView.setProvider(AdblockHelper.get().getProvider());
     }
     else
     {
       // AdblockWebView will create internal AdblockEngine instance
     }
   }
 
   private void hideSoftwareKeyboard()
   {
     InputMethodManager imm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
@@ skipping 34 matching lines @@
   }
 
   @Override
   protected void onDestroy()
   {
     webView.dispose(null);
 
     super.onDestroy();
   }
 }