Remove base::FileUtilProxy::Touch().

Move the code into the last caller.

Change-Id: I1bac0758a60279ee0a4debcc18cb618c30bd5d46
Reviewed-on: https://chromium-review.googlesource.com/1056319
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558428}

CrOS-Libchrome-Original-Commit: e1f94ae515f601ac803f3db579b8eae7f456c213
3 files changed
tree: 235d0826e221e10e84e3c8ff0f5b4627f145af5f
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/