🙅 Bind a WebAPK to its "host" browser.

web_apks/minting_example/src/org/chromium/minting/MintingApplication.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.minting;
 
 import android.app.Application;
 import android.content.Context;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.util.Log;
 
+import org.chromium.minting.lib.common.WebAPKUtils;
+
 import java.lang.reflect.Array;
 import java.util.List;
 
 /**
  * Example application for a minted APK.
  */
 public class MintingApplication extends Application {
-    static final String HOST_PACKAGE_PREF = "HOST_PACKAGE_PREF";
-    static final String MINT_PREFS = "MINT_PREFS";
-    static final String DEFAULT_CHROME_PACKAGE_NAME = "com.google.android.apps.chrome";
-
     // Context of Chrome.
     private Context mRemoteContext = null;
 
     private static final String TAG = "cr.MintingApplication";
     /**
      * Copy all the objects from a specified field of the hostInstance to the same field of the
      * mintInstance. As a result, the given field of the mintInstance will contain all the
      * objects from both instances.
      * @param mintInstance the first instance which contains a field of the given fieldName.
      * @param fieldName the name of field to expand to an Object array.
@@ skipping 106 matching lines @@
         // native library directories first. If a ".so" file doesn't exit, then search /system/lib.
         Object extDexPathList = Reflect.getField(externalLoader, "pathList");
         Object mintDexPathList = Reflect.getField(mintLoader, "pathList");
         expandField(mintDexPathList, "nativeLibraryDirectories", extDexPathList);
         expandField(mintDexPathList, "nativeLibraryPathElements", extDexPathList);
     }
 
     @Override
     public void onCreate() {
         super.onCreate();
+        mRemoteContext = WebAPKUtils.getHostBrowserContext(this);
         try {
-            String packageString = getSharedPreferences(MINT_PREFS, MODE_PRIVATE)
-                    .getString(HOST_PACKAGE_PREF, DEFAULT_CHROME_PACKAGE_NAME);
-            Log.w(TAG, "Getting remote context for package " + packageString);
-            mRemoteContext = getApplicationContext().createPackageContext(
-                    packageString,
-                    Context.CONTEXT_IGNORE_SECURITY | Context.CONTEXT_INCLUDE_CODE);
-            try {
-                addExternalLoader();
-                addNativeLibrarySearchPath();
-            } catch (ReflectiveOperationException e) {
-                e.printStackTrace();
-            }
-            Log.w(TAG, "Successfully add external loader.");
-        } catch (NameNotFoundException e) {
+            addExternalLoader();
+            addNativeLibrarySearchPath();
+        } catch (ReflectiveOperationException e) {
             e.printStackTrace();
         }
+        Log.w(TAG, "Successfully add external loader.");
     }
 }