If os.kill(os.getpid(), signal.CTRL_C_EVENT) doesn't do what the
test author hopes it will do, the test will hang until it has calculated
a million out-of-thread/process results. That is approximately an
infinite hang.

BUG=

Review URL: https://codereview.chromium.org/110883004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@240319 0039d316-1c4b-4281-b951-d872f2087c98