Switch users of foundation_util.h to include it directly and clean up uses of mac_util.h.

BUG=none
TEST=none
[email protected]
NOTRY=TRUE

Review URL: https://codereview.chromium.org/817153002

Cr-Commit-Position: refs/heads/master@{#309368}
92 files changed