Scott Graham 79ae055e50 Add Locking calls to file_io.h plus implementations and test
Towards removing use of open() with O_EXLOCK/O_SHLOCK in code
used on non-BSD.

Adds simple Thread abstraction to util/test.

Includes mini_chromium roll with:
56dd2883170d0df0ec89af0e7862af3f9aaa9be6 Fix import of atomicops for Windows
886592fd6677615c54c4156bb2f2edb5d547ba6c Export SystemErrorCodeToString

R=mark@chromium.org, rsesek@chromium.org
BUG=crashpad:1, crashpad:13

Review URL: https://codereview.chromium.org/1001673002
2015-03-20 15:45:54 -07:00
..
2015-01-15 10:00:43 -08:00
2015-01-15 10:00:43 -08:00