Add missing header files to GN files (3 of N)

I ran check_gn_headers.py on Mac and iOS full builds, merged the missing
header file list, fed to fix_gn_headers.py (without AddHeadersToSources),
and manually fixed the results.

Read more about the manual fixes in the Review-Url.

The number of missing header files on Mac and iOS decreased by 54, from
814 to 760.

None of the fixed files are included in the following spreadsheet:
https://docs.google.com/spreadsheets/d/15az3FMl-jAS0mx4E9XVSBVHVpmEzo-9EAGY0ywe7bZs/edit#gid=0

fix_gn_headers.py is from https://codereview.chromium.org/2790563003

BUG=661774

Review-Url: https://codereview.chromium.org/2788093002
Cr-Commit-Position: refs/heads/master@{#461999}
8 files changed