Drop |languages| from {Format,Elide}Url* and IDNToUnicode

components/search_engines/search_terms_data.h

Index: components/search_engines/search_terms_data.h
diff --git a/components/search_engines/search_terms_data.h b/components/search_engines/search_terms_data.h
index 5d6f0780d214cdfa5ebc38d33f893620a936db74..c91745e8a5061ba0aa2ee3db0fc5a187b7d53a22 100644
--- a/components/search_engines/search_terms_data.h
+++ b/components/search_engines/search_terms_data.h
@@ -60,11 +60,6 @@ class SearchTermsData {
   // GOOGLE_IMAGE_SEARCH_SOURCE.
   virtual std::string GoogleImageSearchSource() const;
 
-  // Returns a string with languages understood by the user.
-  // Determining this requires accessing the Profile, so this can only ever be
-  // non-empty for UIThreadSearchTermsData.
-  virtual std::string GetAcceptLanguages() const;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(SearchTermsData);
 };