Minimize the Classic API and enable it for Next

chrome/browser/resources/chromeos/chromevox/chromevox/injected/script_installer.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.
 
 /**
  * @fileoverview Defines the ScriptInstaller functions which install scripts
  * into the web page (not a content script)
  *
  */
 
 goog.provide('cvox.ScriptInstaller');
 
-goog.require('cvox.DomUtil');
 
 /**
  * URL pattern where we do not allow script installation.
  * @type {RegExp}
  */
 cvox.ScriptInstaller.blacklistPattern = /chrome:\/\/|chrome-extension:\/\//;
 
 /**
  * Installs a script in the web page.
  * @param {Array<string>} srcs An array of URLs of scripts.
@@ skipping 58 matching lines @@
     if (xhr.readyState == 4) {
       var scriptText = xhr.responseText;
       // Add a magic comment to the bottom of the file so that
       // Chrome knows the name of the script in the JavaScript debugger.
       scriptText += '\n//# sourceURL=' + scriptSrc + '\n';
 
       var apiScript = document.createElement('script');
       apiScript.type = 'text/javascript';
       apiScript.setAttribute(uid, '1');
       apiScript.textContent = scriptText;
+      console.log('inst!'+scriptText);

[dmazzoni, 2017/03/09 00:26:36]

remove debugging?

       if (opt_chromevoxScriptBase) {
         apiScript.setAttribute('chromevoxScriptBase',
                                opt_chromevoxScriptBase);
       }
-      cvox.DomUtil.addNodeToHead(apiScript);
+      var p = document.head || document.body;

[dmazzoni, 2017/03/09 00:26:36]

Give this a clearer name like scriptOwner or something like that?

+      p.appendChild(apiScript);
       next();
     }
   };
 
   try {
     xhr.open('GET', url, true);
     xhr.send(null);
   } catch (exception) {
     console.log('Warning: ChromeVox external script loading for ' +
         document.location + ' stopped after failing to install ' + scriptSrc);
     next();
   }
 };