Remove legacy InfoBarViewProtocol.

ios/chrome/browser/infobars/infobar.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.
 
 #include "ios/chrome/browser/infobars/infobar.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #include "components/translate/core/browser/translate_infobar_delegate.h"
 #import "ios/chrome/browser/infobars/confirm_infobar_controller.h"
 #include "ios/chrome/browser/infobars/infobar_controller.h"
 #include "ios/chrome/browser/translate/translate_infobar_tags.h"
+#import "ios/chrome/browser/ui/infobars/infobar_view.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 using infobars::InfoBar;
 using infobars::InfoBarDelegate;
 
 InfoBarIOS::InfoBarIOS(std::unique_ptr<InfoBarDelegate> delegate)
     : InfoBar(std::move(delegate)) {}
@@ skipping 94 matching lines @@
   }
 }
 
 void InfoBarIOS::InfoBarDidCancel() {
   // If not owned, the infobar has already been removed.
   if (!owner())
     return;
   delegate()->InfoBarDismissed();
   RemoveSelf();
 }