Rolling v8/base/trace_event/common to 199985e01e17b5a4888f83648b7cc119779e9245

Rolling v8/build to 4803815de7294778a1496c4e7f3e84ee48e243ef

Rolling v8/buildtools to 57649e5e2001ba1f5e5d45f5a838c616ea0e9cb9

Rolling v8/tools/clang to cca919b21f2436ba1585f7e9de2702ba64fbd8bf

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

Review-Url: https://codereview.chromium.org/2360463002
Cr-Commit-Position: refs/heads/master@{#39570}