Move nullable_string16.h to the string subdirectory.

BUG=247723
TEST=no change
TBR=brettw@chromium.org

Review URL: https://codereview.chromium.org/16415016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@206066 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 0238a162e012a8dc22d8eb58a05d25eaf8f47bec
4 files changed
tree: 326a7605a169fe8a515ec0f7a35362813852aecc
  1. base/
  2. build/
  3. dbus/
  4. ipc/
  5. testing/
  6. third_party/