Remove ChromeBrowserProvider::GetFaviconForURL().

ios/chrome/browser/favicon/favicon_client_impl.mm

 // Copyright 2015 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.
 
 #include "ios/chrome/browser/favicon/favicon_client_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
-#include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
+#include "ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h"
 #include "url/gurl.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 
 void RunFaviconCallbackIfNotCanceled(
     const base::CancelableTaskTracker::IsCanceledCallback& is_canceled_cb,
@@ skipping 20 matching lines @@
     const GURL& url,
     const std::vector<int>& desired_sizes_in_pixel,
     const favicon_base::FaviconResultsCallback& callback,
     base::CancelableTaskTracker* tracker) {
   DCHECK(tracker);
   DCHECK(IsNativeApplicationURL(url));
   base::CancelableTaskTracker::IsCanceledCallback is_canceled_cb;
   base::CancelableTaskTracker::TaskId task_id =
       tracker->NewTrackedTaskId(&is_canceled_cb);
   if (task_id != base::CancelableTaskTracker::kBadTaskId) {
-    ios::GetChromeBrowserProvider()->GetFaviconForURL(
+    ChromeWebUIIOSControllerFactory::GetInstance()->GetFaviconForURL(
         browser_state_, url, desired_sizes_in_pixel,
         base::Bind(&RunFaviconCallbackIfNotCanceled, is_canceled_cb, callback));
   }
   return task_id;
 }