Remove the distinction between informational and warning infobar

ios/chrome/browser/translate/never_translate_infobar_controller.mm

 // Copyright 2013 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/translate/never_translate_infobar_controller.h"
 
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/translate/core/browser/translate_infobar_delegate.h"
 #include "grit/components_strings.h"
@@ skipping 14 matching lines @@
 
 @implementation NeverTranslateInfoBarController
 
 #pragma mark -
 #pragma mark InfoBarControllerProtocol
 
 - (void)layoutForDelegate:(infobars::InfoBarDelegate*)delegate
                     frame:(CGRect)frame {
   translate::TranslateInfoBarDelegate* translateInfoBarDelegate =
       delegate->AsTranslateInfoBarDelegate();
-  infobars::InfoBarDelegate* infoBarDelegate =
-      static_cast<infobars::InfoBarDelegate*>(translateInfoBarDelegate);
   DCHECK(!infoBarView_);
   ios::ChromeBrowserProvider* provider = ios::GetChromeBrowserProvider();
   infoBarView_.reset([provider->CreateInfoBarView()
       initWithFrame:frame
-           delegate:delegate_
-          isWarning:infoBarDelegate->GetInfoBarType() ==
-                    infobars::InfoBarDelegate::WARNING_TYPE]);
+           delegate:delegate_]);
   // Icon
   gfx::Image icon = translateInfoBarDelegate->GetIcon();
   if (!icon.IsEmpty())
     [infoBarView_ addLeftIcon:icon.ToUIImage()];
   // Main text.
   base::string16 originalLanguage = translateInfoBarDelegate->language_name_at(
       translateInfoBarDelegate->original_language_index());
   [infoBarView_ addLabel:l10n_util::GetNSStringF(
                              IDS_TRANSLATE_INFOBAR_NEVER_MESSAGE_IOS,
                              provider->GetStringProvider()->GetProductName(),
@@ skipping 30 matching lines @@
       delegate_->InfoBarDidCancel();
     } else {
       DCHECK(buttonId == TranslateInfoBarIOSTag::DENY_LANGUAGE ||
              buttonId == TranslateInfoBarIOSTag::DENY_WEBSITE);
       delegate_->InfoBarButtonDidPress(buttonId);
     }
   }
 }
 
 @end