Add protected header for ConfirmInfobarController

ios/chrome/browser/infobars/confirm_infobar_controller.mm

Index: ios/chrome/browser/infobars/confirm_infobar_controller.mm
diff --git a/ios/chrome/browser/infobars/confirm_infobar_controller.mm b/ios/chrome/browser/infobars/confirm_infobar_controller.mm
index f887d843d30b5e30f88c312de54524dba6f502d6..e81f59bd40b430d1ef2b384ede92b52aba6220ee 100644
--- a/ios/chrome/browser/infobars/confirm_infobar_controller.mm
+++ b/ios/chrome/browser/infobars/confirm_infobar_controller.mm
@@ -2,7 +2,7 @@
 // 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"
+#import "ios/chrome/browser/infobars/confirm_infobar_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/strings/string_util.h"
@@ -18,7 +18,12 @@
 namespace {
 
 // UI Tags for the infobar elements.
-enum ConfirmInfoBarUITags { OK = 1, CANCEL, CLOSE, TITLE_LINK };
+typedef NS_ENUM(NSInteger, ConfirmInfoBarUITags) {
+  OK = 1,
+  CANCEL,
+  CLOSE,
+  TITLE_LINK
+};
 
 // Converts a UI button tag to the corresponding InfoBarButton.
 ConfirmInfoBarDelegate::InfoBarButton UITagToButton(NSUInteger tag) {
@@ -38,18 +43,12 @@ ConfirmInfoBarDelegate::InfoBarButton UITagToButton(NSUInteger tag) {
 
 #pragma mark - ConfirmInfoBarController
 
-@interface ConfirmInfoBarController ()
-
-// Action for any of the user defined buttons.
-- (void)infoBarButtonDidPress:(id)sender;
-// Action for any of the user defined links.
-- (void)infobarLinkDidPress:(NSNumber*)tag;
-- (void)updateInfobarLabel:(UIView<InfoBarViewProtocol>*)view;
+@interface ConfirmInfoBarController () {
+  ConfirmInfoBarDelegate* _confirmInfobarDelegate;  // weak
+}
 @end
 
-@implementation ConfirmInfoBarController {
-  ConfirmInfoBarDelegate* confirmInfobarDelegate_;  // weak
-}
+@implementation ConfirmInfoBarController
 
 #pragma mark -
 #pragma mark InfoBarController
@@ -58,21 +57,21 @@ ConfirmInfoBarDelegate::InfoBarButton UITagToButton(NSUInteger tag) {
     viewForDelegate:(infobars::InfoBarDelegate*)delegate
               frame:(CGRect)frame {
   base::scoped_nsobject<UIView<InfoBarViewProtocol>> infoBarView;
-  confirmInfobarDelegate_ = delegate->AsConfirmInfoBarDelegate();
+  _confirmInfobarDelegate = delegate->AsConfirmInfoBarDelegate();
   infoBarView.reset(
       ios::GetChromeBrowserProvider()->CreateInfoBarView(frame, self.delegate));
   // Model data.
-  gfx::Image modelIcon = confirmInfobarDelegate_->GetIcon();
-  int buttons = confirmInfobarDelegate_->GetButtons();
+  gfx::Image modelIcon = _confirmInfobarDelegate->GetIcon();
+  int buttons = _confirmInfobarDelegate->GetButtons();
   NSString* buttonOK = nil;
   if (buttons & ConfirmInfoBarDelegate::BUTTON_OK) {
-    buttonOK = base::SysUTF16ToNSString(confirmInfobarDelegate_->GetButtonLabel(
+    buttonOK = base::SysUTF16ToNSString(_confirmInfobarDelegate->GetButtonLabel(
         ConfirmInfoBarDelegate::BUTTON_OK));
   }
   NSString* buttonCancel = nil;
   if (buttons & ConfirmInfoBarDelegate::BUTTON_CANCEL) {
     buttonCancel =
-        base::SysUTF16ToNSString(confirmInfobarDelegate_->GetButtonLabel(
+        base::SysUTF16ToNSString(_confirmInfobarDelegate->GetButtonLabel(
             ConfirmInfoBarDelegate::BUTTON_CANCEL));
   }
 
@@ -101,29 +100,29 @@ ConfirmInfoBarDelegate::InfoBarButton UITagToButton(NSUInteger tag) {
                     action:@selector(infoBarButtonDidPress:)];
   } else {
     // No buttons, only message.
-    DCHECK(!confirmInfobarDelegate_->GetMessageText().empty() && !buttonCancel);
+    DCHECK(!_confirmInfobarDelegate->GetMessageText().empty() && !buttonCancel);
   }
   return infoBarView;
 }
 
 - (void)updateInfobarLabel:(UIView<InfoBarViewProtocol>*)view {
-  if (!confirmInfobarDelegate_->GetMessageText().length())
+  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();
+  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);
+        &messageText, 0, _confirmInfobarDelegate->GetLinkText(), msgLink);
 
     [view addLabel:base::SysUTF16ToNSString(messageText)
             target:self
             action:@selector(infobarLinkDidPress:)];
   } else {
     NSString* label =
-        base::SysUTF16ToNSString(confirmInfobarDelegate_->GetMessageText());
+        base::SysUTF16ToNSString(_confirmInfobarDelegate->GetMessageText());
     [view addLabel:label];
   }
 }
@@ -153,7 +152,7 @@ ConfirmInfoBarDelegate::InfoBarButton UITagToButton(NSUInteger tag) {
     return;
   }
   if ([tag unsignedIntegerValue] == ConfirmInfoBarUITags::TITLE_LINK) {
-    confirmInfobarDelegate_->LinkClicked(NEW_FOREGROUND_TAB);
+    _confirmInfobarDelegate->LinkClicked(NEW_FOREGROUND_TAB);
   }
 }