Rolling v8/third_party/icu to 94e4b770ce2f6065d4261d29c32683a6099b9d93

Rolling v8/tools/swarming_client to e4c0e242eeec361886ed2b89591a505ebe24db43

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

Review URL: https://codereview.chromium.org/1383963002

Cr-Commit-Position: refs/heads/master@{#31062}