tree 156a4bcc6d1410001d5cf3ba3fa2fda0317146cc
parent 27478e627e08ab42c43d5d934da9ea336ccaf628
author Ian Rogers <irogers@google.com> 1417632485 -0800
committer Ian Rogers <irogers@google.com> 1417632485 -0800

Remove unused headers.

Push Closure into only use in thread_pool.h.
Remove StringFile and NullFile that existed purely for a test.

Change-Id: I329892d5e1f5f017caeb3d60600f803a74114fc1