Simplify infobar expiry.

components/translate/core/browser/translate_infobar_delegate.cc

 // Copyright 2014 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 "components/translate/core/browser/translate_infobar_delegate.h"
 
 #include <algorithm>
 
 #include "base/i18n/string_compare.h"
 #include "base/metrics/histogram.h"
@@ skipping 341 matching lines @@
 
 infobars::InfoBarDelegate::Type
 TranslateInfoBarDelegate::GetInfoBarType() const {
   return PAGE_ACTION_TYPE;
 }
 
 int TranslateInfoBarDelegate::GetIconID() const {
   return translate_manager_->translate_client()->GetInfobarIconID();
 }
 
-bool TranslateInfoBarDelegate::ShouldExpire(
-    const NavigationDetails& details) const {
-  // Note: we allow closing this infobar even if the main frame navigation
-  // was programmatic and not initiated by the user - crbug.com/70261 .
-  if (!details.is_navigation_to_different_page && !details.is_main_frame)
-    return false;
-
-  return infobars::InfoBarDelegate::ShouldExpireInternal(details);
-}
-
 void TranslateInfoBarDelegate::InfoBarDismissed() {
   if (step_ != translate::TRANSLATE_STEP_BEFORE_TRANSLATE)
     return;
 
   // The user closed the infobar without clicking the translate button.
   TranslationDeclined();
   UMA_HISTOGRAM_BOOLEAN("Translate.DeclineTranslateCloseInfobar", true);
 }
 
 TranslateInfoBarDelegate*
     TranslateInfoBarDelegate::AsTranslateInfoBarDelegate() {
   return this;
 }
 
 }  // namespace translate