Replace a few typeofs with delctype.

net/http/http_auth_gssapi_posix.h

Index: net/http/http_auth_gssapi_posix.h
diff --git a/net/http/http_auth_gssapi_posix.h b/net/http/http_auth_gssapi_posix.h
index 4091ba356b963e622355ae6177540d6b7310f01e..58f17a6cfc9171d8fa0e9c957d9ce6ebb6c55a79 100644
--- a/net/http/http_auth_gssapi_posix.h
+++ b/net/http/http_auth_gssapi_posix.h
@@ -164,15 +164,15 @@ class NET_EXPORT_PRIVATE GSSAPISharedLibrary : public GSSAPILibrary {
                             int* open) override;
 
  private:
-  typedef typeof(&gss_import_name) gss_import_name_type;
-  typedef typeof(&gss_release_name) gss_release_name_type;
-  typedef typeof(&gss_release_buffer) gss_release_buffer_type;
-  typedef typeof(&gss_display_name) gss_display_name_type;
-  typedef typeof(&gss_display_status) gss_display_status_type;
-  typedef typeof(&gss_init_sec_context) gss_init_sec_context_type;
-  typedef typeof(&gss_wrap_size_limit) gss_wrap_size_limit_type;
-  typedef typeof(&gss_delete_sec_context) gss_delete_sec_context_type;
-  typedef typeof(&gss_inquire_context) gss_inquire_context_type;
+  typedef decltype(&gss_import_name) gss_import_name_type;
+  typedef decltype(&gss_release_name) gss_release_name_type;
+  typedef decltype(&gss_release_buffer) gss_release_buffer_type;
+  typedef decltype(&gss_display_name) gss_display_name_type;
+  typedef decltype(&gss_display_status) gss_display_status_type;
+  typedef decltype(&gss_init_sec_context) gss_init_sec_context_type;
+  typedef decltype(&gss_wrap_size_limit) gss_wrap_size_limit_type;
+  typedef decltype(&gss_delete_sec_context) gss_delete_sec_context_type;
+  typedef decltype(&gss_inquire_context) gss_inquire_context_type;
 
   FRIEND_TEST_ALL_PREFIXES(HttpAuthGSSAPIPOSIXTest, GSSAPIStartup);