Remove ChromeBrowserProvider::GetFaviconForURL().

ios/chrome/browser/favicon/favicon_client_impl.mm

Index: ios/chrome/browser/favicon/favicon_client_impl.mm
diff --git a/ios/chrome/browser/favicon/favicon_client_impl.mm b/ios/chrome/browser/favicon/favicon_client_impl.mm
index 860e48948644cb609d5a93b7a769a95e1f3cba08..fca5a4488b6517033a6f6bb2d62f9a255d9b6681 100644
--- a/ios/chrome/browser/favicon/favicon_client_impl.mm
+++ b/ios/chrome/browser/favicon/favicon_client_impl.mm
@@ -8,7 +8,7 @@
 #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)
@@ -49,7 +49,7 @@ FaviconClientImpl::GetFaviconForNativeApplicationURL(
   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));
   }