Move //webapk to //chrome/android/webapk

chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/WebApkServiceFactory.java

 // Copyright 2015 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.webapk.shell_apk;
 
 import android.app.Service;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ skipping 148 matching lines @@
      * @param assetName The name of the asset.
      */
     private static int readAssetContentsToInt(Context context, String assetName) {
         try (Scanner scanner = new Scanner(context.getAssets().open(assetName))) {
             return scanner.nextInt();
         } catch (Exception e) {
             return -1;
         }
     }
 }