Pass the correct webState to the nativeContent.

ios/chrome/browser/ui/preload_controller.mm

Index: ios/chrome/browser/ui/preload_controller.mm
diff --git a/ios/chrome/browser/ui/preload_controller.mm b/ios/chrome/browser/ui/preload_controller.mm
index 5c4c43d33074aadb72dffd61782c90b461500ed9..9833688df5dd1bb775371d32819742c649904129 100644
--- a/ios/chrome/browser/ui/preload_controller.mm
+++ b/ios/chrome/browser/ui/preload_controller.mm
@@ -277,7 +277,8 @@ class PrefetchDelegate : public net::URLFetcherDelegate {
 
 // Override the CRWNativeContentProvider methods to cancel any prerenders that
 // require native content.
-- (id<CRWNativeContent>)controllerForURL:(const GURL&)url {
+- (id<CRWNativeContent>)controllerForURL:(const GURL&)url
+                            withWebState:(web::WebState*)webState {
   [self schedulePrerenderCancel];
   return nil;
 }