Manually fetch favicons after hash changes.

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 416 matching lines @@
   };
 
   __gCrWeb['getFullyQualifiedURL'] = function(originalURL) {
     // A dummy anchor (never added to the document) is used to obtain the
     // fully-qualified URL of |originalURL|.
     var anchor = document.createElement('a');
     anchor.href = originalURL;
     return anchor.href;
   };
 
+  __gCrWeb['sendFaviconsToHost'] = function() {
+    __gCrWeb.message.invokeOnHost({'command': 'document.favicons',
+                                   'favicons': __gCrWeb.common.getFavicons()});
+  }
+
   // Tracks whether user is in the middle of scrolling/dragging. If user is
   // scrolling, ignore window.scrollTo() until user stops scrolling.
   var webViewScrollViewIsDragging_ = false;
   __gCrWeb['setWebViewScrollViewIsDragging'] = function(state) {
     webViewScrollViewIsDragging_ = state;
   };
   var originalWindowScrollTo = window.scrollTo;
   window.scrollTo = function(x, y) {
     if (webViewScrollViewIsDragging_)
       return;
@@ skipping 208 matching lines @@
 
    // Handle or wait for and handle document load completion, if applicable.
    if (__gCrWeb.core_dynamic.handleDocumentLoaded)
      __gCrWeb.core_dynamic.handleDocumentLoaded();
 
     return true;
   };
 
   __gCrWeb.core.documentInject();
 }());  // End of anonymous object