Suppress six leaks and one UMR on Mac

Suppress valgrind warnings for
http://crbug.com/9561 
http://crbug.com/11270 
http://crbug.com/11271 
http://crbug.com/11286 
and a couple of things that seem clearly to be
system issues rather than chromium issues.

Just trying to get the mac unit_test valgrind builder green.


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=15071

[dank, 2009-04-30 23:15:38]

Thanks...

[Evan Stade, 2009-05-01 02:24:30]

two thumbs up

[dank, 2009-05-01 17:51:41]

Since estade is OOO.

[James Hawkins, 2009-05-01 17:55:14]

LGTM