Rolling v8/build/gyp to 5170bfd38fe79bd5b16aa7f6c5439fb90a37ae66

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

Review URL: https://codereview.chromium.org/1685413002

Cr-Commit-Position: refs/heads/master@{#33879}