Deprecate __gCrWeb['sendFaviconsToHost'] by inlining it.

ios/web/web_state/js/resources/navigation.js

Index: ios/web/web_state/js/resources/navigation.js
diff --git a/ios/web/web_state/js/resources/navigation.js b/ios/web/web_state/js/resources/navigation.js
index 4e299d553316b37fc7be88697bb9eea167018342..918b8aec20862f090e5bd942d42d249db7d98588 100644
--- a/ios/web/web_state/js/resources/navigation.js
+++ b/ios/web/web_state/js/resources/navigation.js
@@ -8,6 +8,7 @@
 
 goog.provide('__crWeb.navigation');
 
+goog.require('__crWeb.common');
 goog.require('__crWeb.message');
 
 /** Beginning of anonymouse object */
@@ -117,6 +118,11 @@ goog.require('__crWeb.message');
   };
 
   window.addEventListener('hashchange', function(evt) {
+    // Because hash changes don't trigger __gCrWeb.didFinishNavigation, so fetch
+    // favicons for the new page manually.
+    __gCrWeb.message.invokeOnHost({'command': 'document.favicons',
+                                   'favicons': __gCrWeb.common.getFavicons()});
+
     __gCrWeb.message.invokeOnHost({'command': 'window.hashchange'});
   });