Rolling v8/base/trace_event/common to 81b7b6f531ad2375140b2a5f4d3a803e5ba2514c

Rolling v8/buildtools to 14288a03a92856fe1fc296d39e6a25c2d83cd6cf

Rolling v8/tools/swarming_client to a72f46e42dba1335e8001499b4621acad2d26728

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

Review URL: https://codereview.chromium.org/1737243003

Cr-Commit-Position: refs/heads/master@{#34309}