Rolling v8/build/gyp to 66bbdf4c6b450d55bd9e53fd18d9628a8f328398

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review URL: https://codereview.chromium.org/1686933002

Cr-Commit-Position: refs/heads/master@{#33853}