Undocument directives unavailable to users.
It seems confusing to document directives that couldn't be used.
GITHUB_BREAKING_CHANGES=Make |escapeHtmlHtmlAttribute internal only.
@@ -45,7 +45,7 @@ public enum EscapingMode {
ESCAPE_HTML_ATTRIBUTE(true, null, /* internalOnly= */ true),
/** Escapes HTML but doesn't mark it as HTML embeddable to allow double escaping it. */
- ESCAPE_HTML_HTML_ATTRIBUTE(false, null),
+ ESCAPE_HTML_HTML_ATTRIBUTE(false, null, /* internalOnly= */ true),
/**
* Encodes HTML special characters and spaces so that the value can appear as part of an unquoted
