Remove legacy InfoBarViewProtocol.

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.
 
 #import "ios/chrome/browser/infobars/confirm_infobar_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #import "ios/chrome/browser/ui/infobars/infobar_view.h"
 #import "ios/chrome/browser/ui/infobars/infobar_view_delegate.h"
-#import "ios/chrome/browser/ui/infobars/infobar_view_protocol.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/image/image.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 
@@ skipping 26 matching lines @@
 @interface ConfirmInfoBarController () {
   ConfirmInfoBarDelegate* _confirmInfobarDelegate;
 }
 @end
 
 @implementation ConfirmInfoBarController
 
 #pragma mark -
 #pragma mark InfoBarController
 
-- (UIView<InfoBarViewProtocol>*)viewForDelegate:
-                                    (infobars::InfoBarDelegate*)delegate
-                                          frame:(CGRect)frame {
-  UIView<InfoBarViewProtocol>* infoBarView;
+- (InfoBarView*)viewForDelegate:(infobars::InfoBarDelegate*)delegate
+                          frame:(CGRect)frame {
   _confirmInfobarDelegate = delegate->AsConfirmInfoBarDelegate();
-  infoBarView =
+  InfoBarView* infoBarView =
       [[InfoBarView alloc] initWithFrame:frame delegate:self.delegate];
   // Model data.
   gfx::Image modelIcon = _confirmInfobarDelegate->GetIcon();
   int buttons = _confirmInfobarDelegate->GetButtons();
   NSString* buttonOK = nil;
   if (buttons & ConfirmInfoBarDelegate::BUTTON_OK) {
     buttonOK = base::SysUTF16ToNSString(_confirmInfobarDelegate->GetButtonLabel(
         ConfirmInfoBarDelegate::BUTTON_OK));
   }
   NSString* buttonCancel = nil;
@@ skipping 26 matching lines @@
                        tag:ConfirmInfoBarUITags::OK
                     target:self
                     action:@selector(infoBarButtonDidPress:)];
   } else {
     // No buttons, only message.
     DCHECK(!_confirmInfobarDelegate->GetMessageText().empty() && !buttonCancel);
   }
   return infoBarView;
 }
 
-- (void)updateInfobarLabel:(UIView<InfoBarViewProtocol>*)view {
+- (void)updateInfobarLabel:(InfoBarView*)view {
   if (!_confirmInfobarDelegate->GetMessageText().length())
     return;
   if (_confirmInfobarDelegate->GetLinkText().length()) {
     base::string16 msgLink = base::SysNSStringToUTF16([[view class]
         stringAsLink:base::SysUTF16ToNSString(
                          _confirmInfobarDelegate->GetLinkText())
                  tag:ConfirmInfoBarUITags::TITLE_LINK]);
     base::string16 messageText = _confirmInfobarDelegate->GetMessageText();
     base::ReplaceFirstSubstringAfterOffset(
         &messageText, 0, _confirmInfobarDelegate->GetLinkText(), msgLink);
@@ skipping 32 matching lines @@
   if (!self.delegate) {
     return;
   }
   if ([tag unsignedIntegerValue] == ConfirmInfoBarUITags::TITLE_LINK) {
     _confirmInfobarDelegate->LinkClicked(
         WindowOpenDisposition::NEW_FOREGROUND_TAB);
   }
 }
 
 @end