[Android] Show document mode opt-out InfoBar on selected devices.

chrome/android/java/src/org/chromium/chrome/browser/preferences/DocumentModePreference.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.chrome.browser.preferences;
 
 import android.annotation.TargetApi;
 import android.app.ActivityManager;
 import android.app.ActivityManager.AppTask;
 import android.content.Context;
@@ skipping 67 matching lines @@
                 })
                 .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         dialog.dismiss();
                         if (optOut) {
                             RecordUserAction.record("DocumentActivity_UserOptOut");
                         } else {
                             RecordUserAction.record("DocumentActivity_UserOptIn");
                         }
-                        mDocumentModeManager.setOptedOutState(optOut
-                                ? DocumentModeManager.OPT_OUT_PROMO_DISMISSED
-                                : DocumentModeManager.OPTED_OUT_OF_DOCUMENT_MODE);
-                        mDocumentModeManager.setOptOutCleanUpPending(true);
                         DocumentMigrationHelper.migrateTabs(
                                 optOut, getActivity(), isRestartNeeded(optOut));
                     }
                 })
                 .setOnCancelListener(new DialogInterface.OnCancelListener() {
                     @Override
                     public void onCancel(DialogInterface dialog) {
                         mDocumentModeSwitch.setChecked(isSwitchEnabled);
                     }
                 })
@@ skipping 24 matching lines @@
 
         for (int i = 0; i < taskList.size(); i++) {
             String className = DocumentUtils.getTaskClassName(taskList.get(i), pm);
             if (className == null) continue;
             if (DocumentActivity.isDocumentActivity(className)) return true;
         }
         return false;
     }
 
 }