[Extensions] Convert some ChromeSyncExtensionFunctions

chrome/browser/extensions/api/i18n/i18n_api.h

Index: chrome/browser/extensions/api/i18n/i18n_api.h
diff --git a/chrome/browser/extensions/api/i18n/i18n_api.h b/chrome/browser/extensions/api/i18n/i18n_api.h
index 5863aaacf22c42625d43467e99cc5928bb968db7..5576a36339f9d0a1c39949179b14bf146fdb7e92 100644
--- a/chrome/browser/extensions/api/i18n/i18n_api.h
+++ b/chrome/browser/extensions/api/i18n/i18n_api.h
@@ -5,16 +5,13 @@
 #ifndef CHROME_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
 
-#include "chrome/browser/extensions/chrome_extension_function.h"
-#include "extensions/browser/browser_context_keyed_api_factory.h"
-
-class Profile;
+#include "extensions/browser/extension_function.h"
 
 namespace extensions {
 
-class I18nGetAcceptLanguagesFunction : public ChromeSyncExtensionFunction {
+class I18nGetAcceptLanguagesFunction : public UIThreadExtensionFunction {
   ~I18nGetAcceptLanguagesFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("i18n.getAcceptLanguages", I18N_GETACCEPTLANGUAGES)
 };