Deprecate __gCrWeb['sendFaviconsToHost'] by inlining it.

ios/web/web_state/ui/crw_web_controller.mm

 // 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.
 
 #import "ios/web/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
 
 #import <objc/runtime.h>
 #include <stddef.h>
@@ skipping 2664 matching lines @@
     DLOG(WARNING) << "JS message parameter not found: message";
     return NO;
   }
   DLOG(ERROR) << "JavaScript error: " << errorMessage
               << " URL:" << [self currentURL].spec();
   return YES;
 }
 
 - (BOOL)handleWindowHashChangeMessage:(base::DictionaryValue*)message
                               context:(NSDictionary*)context {
-  // Because hash changes don't trigger |-didFinishNavigation|, fetch favicons
-  // for the new page manually.
-  [self executeJavaScript:@"__gCrWeb.sendFaviconsToHost();"
-        completionHandler:nil];
-
   // Record that the current NavigationItem was created by a hash change, but
   // ignore hashchange events that are manually dispatched for same-document
   // navigations.
   if (_dispatchingSameDocumentHashChangeEvent) {
     _dispatchingSameDocumentHashChangeEvent = NO;
   } else {
     web::NavigationItemImpl* item = self.currentNavItem;
     DCHECK(item);
     item->SetIsCreatedFromHashChange(true);
   }
@@ skipping 2370 matching lines @@
 - (void)simulateLoadRequestWithURL:(const GURL&)URL {
   _lastRegisteredRequestURL = URL;
   _loadPhase = web::LOAD_REQUESTED;
 }
 
 - (NSString*)referrerFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:kReferrerHeaderName];
 }
 
 @end