Refactor callbacks for opening a new window.

ios/web/web_state/js/resources/core.js

 // Copyright 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.
 
 // This file adheres to closure-compiler conventions in order to enable
 // compilation with ADVANCED_OPTIMIZATIONS. In particular, members that are to
 // be accessed externally should be specified in this['style'] as opposed to
 // this.style because member identifiers are minified by default.
 // See http://goo.gl/FwOgy
 
@@ skipping 345 matching lines @@
 
     var metaTags = document.getElementsByTagName('meta');
     for (var i = 0; i < metaTags.length; ++i) {
       if (metaTags[i].name.toLowerCase() == 'referrer') {
         return metaTags[i].content.toLowerCase();
       }
     }
     return 'default';
   };
 
-  // Provides a way for other injected javascript to access the page's referrer
-  // policy.
-  __gCrWeb['getPageReferrerPolicy'] = function() {
-    return getReferrerPolicy_();
-  };
-
   // Various aspects of global DOM behavior are overridden here.
 
   // A popstate event needs to be fired anytime the active history entry
   // changes without an associated document change. Either via back, forward, go
   // navigation or by loading the URL, clicking on a link, etc.
   __gCrWeb['dispatchPopstateEvent'] = function(stateObject) {
     var popstateEvent = window.document.createEvent('HTMLEvents');
     popstateEvent.initEvent('popstate', true, false);
     if (stateObject)
       popstateEvent.state = JSON.parse(stateObject);
@@ skipping 190 matching lines @@
              'command': 'document.submit',
             'formName': __gCrWeb.common.getFormIdentifier(evt.srcElement),
                 'href': __gCrWeb['getFullyQualifiedURL'](action),
         'targetsFrame': targetsFrame
     });
   }, false);
 
   addFormEventListeners_();
 
 }());  // End of anonymous object