Remove remaining legacy SplitString calls.

TBR=zelidrag@chromium.org (chromeos)

Review URL: https://codereview.chromium.org/1284833004

Cr-Original-Commit-Position: refs/heads/master@{#342983}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 83dc1610d1a0e3b78909b565943bfa12aeae9370
6 files changed
tree: 8db07868ea69614f09084b7608c5848681af315e
  1. tools/