Pattern used:

find . -name "*.cxx" -exec sed -i 's/\( *\)\(else if\|if\) *( *\([^!()|&]*\)\.equalsAsciiL( *RTL_CONSTASCII_STRINGPARAM *( *\([^)]*\)) *) *) *{$/\1\2 ( \3 == \4 ) {/' \{\} \;