Revert 202427 "Translate: adopt html lang attribute if valid val..."

trunk/src/chrome/renderer/translate/translate_helper_metrics.h

Index: trunk/src/chrome/renderer/translate/translate_helper_metrics.h
===================================================================
--- trunk/src/chrome/renderer/translate/translate_helper_metrics.h	(revision 202442)
+++ trunk/src/chrome/renderer/translate/translate_helper_metrics.h	(working copy)
@@ -16,7 +16,6 @@
 enum MetricsNameIndex {
   UMA_LANGUAGE_DETECTION,
   UMA_CONTENT_LANGUAGE,
-  UMA_HTML_LANG,
   UMA_LANGUAGE_VERIFICATION,
   UMA_TIME_TO_BE_READY,
   UMA_TIME_TO_LOAD,
@@ -28,11 +27,11 @@
 
 // A page may provide a Content-Language HTTP header or a META tag.
 // TranslateHelper checks if a server provides a valid Content-Language.
-enum LanguageCheckType {
-  LANGUAGE_NOT_PROVIDED,
-  LANGUAGE_VALID,
-  LANGUAGE_INVALID,
-  LANGUAGE_MAX,
+enum ContentLanguageType {
+  CONTENT_LANGUAGE_NOT_PROVIDED,
+  CONTENT_LANGUAGE_VALID,
+  CONTENT_LANGUAGE_INVALID,
+  CONTENT_LANGUAGE_MAX,
 };
 
 // When a valid Content-Language is provided, TranslateHelper checks if a
@@ -55,19 +54,12 @@
 };
 
 // Called after TranslateHelper verifies a server providing Content-Language
-// header. |provided_code| contains a Content-Language header value which a
+// header. |provided_code| contains a Content-Language header value which
 // server provides. It can be empty string when a server doesn't provide it.
 // |revised_code| is a value modified by format error corrector.
 void ReportContentLanguage(const std::string& provided_code,
                            const std::string& revised_code);
 
-// Called after TranslateHelper verifies a page providing html lang attribute.
-// |provided_code| contains a html lang attribute which a page provides. It can
-// be empty string when a page doesn't provide it. |revised_code| is a value
-// modified by format error corrector.
-void ReportHtmlLang(const std::string& provided_code,
-                    const std::string& revised_code);
-
 // Called when CLD verifies Content-Language header.
 void ReportLanguageVerification(LanguageVerificationType type);