Cleanup: Better constify some strings in base.

Fix some lint errors along the way.

Review URL: https://codereview.chromium.org/632103004

Cr-Commit-Position: refs/heads/master@{#300407}


CrOS-Libchrome-Original-Commit: 073d514d518521a5c409d5037b45e0a46602c997
27 files changed
tree: 6cf1f66772dbdc63dce7412261caff51bf4ce50f
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/