base: Move SplitStringUsingSubstr functions from string_util.h to string_split.h

BUG=None
TEST=trybots

Review URL: http://codereview.chromium.org/3284005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@58300 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: e8478ae4ef8bd1dbb83cd46e8af060d5331ba2df
6 files changed
tree: 65010f92f34122aa16a3f30f196d9f6538a4a73a
  1. base/
  2. build/
  3. ipc/
  4. testing/