Translate (Mac): add after infobar UI for server side language detection

chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm

Index: chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm
diff --git a/chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm b/chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm
index 25ea9c726904d5eed47951fa673c2f6c3adbc28f..8d8f2b71222284a449bf65676e5bc8d7cafb7b1f 100644
--- a/chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm
+++ b/chrome/browser/ui/cocoa/infobars/translate_infobar_base.mm
@@ -269,8 +269,11 @@ InfoBar* TranslateInfoBarDelegate::CreateInfoBar(InfoBarService* owner) {
                 i != [self delegate]->original_language_index(),
                 i == [self delegate]->target_language_index());
   }
-  [fromLanguagePopUp_
-      selectItemAtIndex:([self delegate]->original_language_index())];
+  if ([self delegate]->original_language_index() !=
+      TranslateInfoBarDelegate::kNoIndex) {
+    [fromLanguagePopUp_
+        selectItemAtIndex:([self delegate]->original_language_index())];
+  }
   [toLanguagePopUp_
       selectItemAtIndex:([self delegate]->target_language_index())];
 }