Fix certificate manager starting with no tab selected if opened by URL.

chrome/browser/resources/options/certificate_manager.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
 
   var OptionsPage = options.OptionsPage;
 
   /////////////////////////////////////////////////////////////////////////////
   // CertificateManagerTab class:
@@ skipping 184 matching lines @@
     initalized_: false,
 
     /**
      * Handler for OptionsPage's visible property change event.
      * @private
      * @param {Event} e Property change event.
      */
     handleVisibleChange_: function(e) {
       if (!this.initalized_ && this.visible) {
         this.initalized_ = true;
+        OptionsPage.showTab($('personal-certs-nav-tab'));
         chrome.send('populateCertificateManager');
       }
 
       if (cr.isChromeOS) {
         // Ensure TPM token check on visible and stop polling when hidden.
         if (this.visible)
           checkTpmToken();
         else
           stopTpmTokenCheckPolling();
       }
@@ skipping 25 matching lines @@
     }
   };
 
   // Export
   return {
     CertificateManagerTab: CertificateManagerTab,
     CertificateManager: CertificateManager
   };
 
 });