Remove the distinction between informational and warning infobar

ios/chrome/browser/infobars/confirm_infobar_controller.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/confirm_infobar_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
@@ skipping 36 matching lines @@
 
 #pragma mark -
 #pragma mark InfoBarController
 
 - (void)layoutForDelegate:(infobars::InfoBarDelegate*)delegate
                     frame:(CGRect)frame {
   ConfirmInfoBarDelegate* infoBarModel = delegate->AsConfirmInfoBarDelegate();
   DCHECK(!infoBarView_);
   infoBarView_.reset([ios::GetChromeBrowserProvider()->CreateInfoBarView()
       initWithFrame:frame
-           delegate:delegate_
-          isWarning:infoBarModel->GetInfoBarType() ==
-                    infobars::InfoBarDelegate::WARNING_TYPE]);
+           delegate:delegate_]);
 
   // Model data.
   NSString* modelMsg = nil;
   if (infoBarModel->GetMessageText().length())
     modelMsg = base::SysUTF16ToNSString(infoBarModel->GetMessageText());
   gfx::Image modelIcon = infoBarModel->GetIcon();
   int buttons = infoBarModel->GetButtons();
   NSString* buttonOK = nil;
   if (buttons & ConfirmInfoBarDelegate::BUTTON_OK) {
     buttonOK = base::SysUTF16ToNSString(
@@ skipping 47 matching lines @@
   if ([sender isKindOfClass:[UIButton class]]) {
     NSUInteger tag = static_cast<UIButton*>(sender).tag;
     if (tag == ConfirmInfoBarUITags::CLOSE)
       delegate_->InfoBarDidCancel();
     else
       delegate_->InfoBarButtonDidPress(UITagToButton(tag));
   }
 }
 
 @end