Makes TranslateInfoBarDelegate's overridden methods public

TranslateInfoBarDelegate shouldn't have reduced visibility of methods
inheritted from infobars::InfoBarDelegate.

This change is required as part of refactoring infobars in iOS

Change-Id: Ied7c67388503129349bf19fd0a8e9f65668877c1
Reviewed-on: https://chromium-review.googlesource.com/1047188Reviewed-by: Rachel Blum <groby@chromium.org>
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556462}

components/translate/core/browser/translate_infobar_delegate.h

@@ -205,6 +205,12 @@ class TranslateInfoBarDelegate : public infobars::InfoBarDelegate {
   // Set a observer.
   void SetObserver(Observer* observer);
 
+  // InfoBarDelegate:
+  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
+  int GetIconId() const override;
+  void InfoBarDismissed() override;
+  TranslateInfoBarDelegate* AsTranslateInfoBarDelegate() override;
+
  protected:
   TranslateInfoBarDelegate(
       const base::WeakPtr<TranslateManager>& translate_manager,
@@ -219,12 +225,6 @@ class TranslateInfoBarDelegate : public infobars::InfoBarDelegate {
   friend class TranslationInfoBarTest;
   typedef std::pair<std::string, base::string16> LanguageNamePair;
 
-  // InfoBarDelegate:
-  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
-  int GetIconId() const override;
-  void InfoBarDismissed() override;
-  TranslateInfoBarDelegate* AsTranslateInfoBarDelegate() override;
-
   bool is_off_the_record_;
   translate::TranslateStep step_;