Cherrypick of r34036 to make merge at r34474 build.
Merging only changes to base/logging.* (for RAW_LOG()/RAW_CHECK()), and NOT changes to chrome/browser/browser_main.cc.
Original CL description:
Make POSIX SIGTERM/SIGINT/SIGHUP handler async signal safe.
* Don't use LOG/CHECK. Replace with RAW_LOG/DCHECK (newly added to logging.h)
* Don't directly post a task to the UI loop. Write to a magic pipe. Read this from a separate thread which will post to a task to the UI loop.
BUG=http://crbug.com/29240
Review URL: http://codereview.chromium.org/460094
TBR=viettrungluu@chromium.org,mark@chromium.org,willchan@chromium.org
Review URL: http://codereview.chromium.org/501004
git-svn-id: svn://svn.chromium.org/chrome/branches/249/src@34499 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed
