Support string_scanner 1.0.0.
Support string_scanner 1.0.0.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//2086743002 .

kevmoo/test,iglherme/Guttiest,grouma/test,kevmoo/test,grouma/test,iglherme/Guttiest,grouma/test,kevmoo/test,iglherme/Guttiest