Move IDMap back to base/ where it is needed.

TEST=Covered by base_unittests.
BUG=none

Review URL: http://codereview.chromium.org/173026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@23709 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 925d5d60d95e96ea5e1c89d44dd348915984776e
3 files changed
tree: 48f88df77cf8f99412ae67b3c895d72921f16dfb
  1. base/
  2. build/
  3. ipc/
  4. testing/