Move MatchPattern to its own header and the base namespace.

BUG=

Review URL: https://codereview.chromium.org/1226673003

Cr-Commit-Position: refs/heads/master@{#337488}


CrOS-Libchrome-Original-Commit: d97eede0d9eb25ebffc918c8ebfcf9a9d9703a88
12 files changed
tree: f0712e19e9dfdac8b5207b56238d7e2bf2a98a76
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/