Make commands consistent across security interstitials

chrome/browser/resources/security_warnings/safe_browsing.js

 // Copyright 2014 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.
 
-// Must match the commands handled by SafeBrowsingBlockingPage::CommandReceived.
-var SB_CMD_DO_REPORT = 'doReport';
-var SB_CMD_DONT_REPORT = 'dontReport';
-var SB_CMD_EXPANDED_SEE_MORE = 'expandedSeeMore';
-var SB_CMD_LEARN_MORE_2 = 'learnMore2';
-var SB_CMD_PROCEED = 'proceed';
-var SB_CMD_SHOW_DIAGNOSTIC = 'showDiagnostic';
-var SB_CMD_SHOW_PRIVACY = 'showPrivacy';
-var SB_CMD_TAKE_ME_BACK = 'takeMeBack';
-
 // Other constants defined in safe_browsing_blocking_page.cc.
 var SB_BOX_CHECKED = 'boxchecked';
 var SB_DISPLAY_CHECK_BOX = 'displaycheckbox';
 
 // This sets up the Extended Safe Browsing Reporting opt-in.
 function setupCheckbox() {
   if (loadTimeData.getString('type') != 'SAFEBROWSING' ||
       !loadTimeData.getBoolean(SB_DISPLAY_CHECK_BOX)) {
     return;
   }
 
   $('opt-in-label').innerHTML = loadTimeData.getString('optInLink');
   $('opt-in-checkbox').checked = loadTimeData.getBoolean(SB_BOX_CHECKED);
   $('malware-opt-in').classList.remove('hidden');
   $('body').classList.add('safe-browsing-has-checkbox');
 
   $('opt-in-checkbox').addEventListener('click', function() {
     sendCommand(
-        $('opt-in-checkbox').checked ? SB_CMD_DO_REPORT : SB_CMD_DONT_REPORT);
+        $('opt-in-checkbox').checked ? CMD_DO_REPORT : CMD_DONT_REPORT);
   });
 }