POSIX: catch more crash-indicating signals for in-process crash dumping.
POSIX: catch more crash-indicating signals for in-process crash dumping.

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/1801007

git-svn-id: http://src.chromium.org/svn/trunk/src@46043 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: dd27d4e8a6390b8da499db8746b26bfa4397d1ec
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser