[iOS] Fix DCHECK in ShouldShowAlwaysTranslateShortcut()

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 244 matching lines @@
 }
 
 bool TranslateInfoBarDelegate::ShouldShowNeverTranslateShortcut() {
   DCHECK_EQ(translate::TRANSLATE_STEP_BEFORE_TRANSLATE, step_);
   return !is_off_the_record_ &&
       (prefs_->GetTranslationDeniedCount(original_language_code()) >=
           kNeverTranslateMinCount);
 }
 
 bool TranslateInfoBarDelegate::ShouldShowAlwaysTranslateShortcut() {
+#if defined(OS_IOS)
+  // On mobile, the option to always translate is shown after the translation.
+  DCHECK_EQ(translate::TRANSLATE_STEP_AFTER_TRANSLATE, step_);
+#else
+  // On desktop, the option to always translate is shown before the translation.
   DCHECK_EQ(translate::TRANSLATE_STEP_BEFORE_TRANSLATE, step_);
+#endif
   return !is_off_the_record_ &&
       (prefs_->GetTranslationAcceptedCount(original_language_code()) >=
           kAlwaysTranslateMinCount);
 }
 
 #if defined(OS_IOS)
 void TranslateInfoBarDelegate::ShowNeverTranslateInfobar() {
   Create(true, translate_manager_, infobar()->owner(), is_off_the_record_,
          translate::TRANSLATE_STEP_NEVER_TRANSLATE, original_language_code(),
          target_language_code(), TranslateErrors::NONE, false);
@@ skipping 95 matching lines @@
   TranslationDeclined();
   UMA_HISTOGRAM_BOOLEAN("Translate.DeclineTranslateCloseInfobar", true);
 }
 
 TranslateInfoBarDelegate*
     TranslateInfoBarDelegate::AsTranslateInfoBarDelegate() {
   return this;
 }
 
 }  // namespace translate