[Android] Refactor NativeView to be able to use it for AutofillDialog.

ui/android/java/src/org/chromium/ui/gfx/ActivityWindowAndroid.java

 // Copyright (c) 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.ui.gfx;
 
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.SparseArray;
 import android.widget.Toast;
 
 import java.util.HashMap;
 
 /**
  * The window that has access to the main activity and is able to create and receive intents,
  * and show error messages.
  */
-public class ActivityNativeWindow extends NativeWindow {
+public class ActivityWindowAndroid extends WindowAndroid {
 
     // Constants used for intent request code bounding.
     private static final int REQUEST_CODE_PREFIX = 1000;
     private static final int REQUEST_CODE_RANGE_SIZE = 100;
     // A string used as a key to store intent errors in a bundle
     static final String WINDOW_CALLBACK_ERRORS = "window_callback_errors";
 
     private int mNextRequestCode = 0;
     protected Activity mActivity;
     protected SparseArray<IntentCallback> mOutstandingIntents;
     protected HashMap<Integer, String> mIntentErrors;
 
     /**
      * @param activity
      */
-    public ActivityNativeWindow(Activity activity) {
+    public ActivityWindowAndroid(Activity activity) {
         super(activity);
         mActivity = activity;
         mOutstandingIntents = new SparseArray<IntentCallback>();
         mIntentErrors = new HashMap<Integer, String>();
 
     }
 
     /**
      * Shows an intent and returns the results to the callback object.
      * @param intent The intent that needs to be showed.
@@ skipping 96 matching lines @@
         } else {
             if (errorMessage != null) {
                 showCallbackNonExistentError(errorMessage);
                 return true;
             }
         }
         return false;
     }
 
 }