Attempt to fix flakiness in run_multidomain_test's exit status on Windows
Attempt to fix flakiness in run_multidomain_test's exit status on Windows

This test has been failing occasionally with:

  ERROR: Command returned exit status 1001 (0x3e9) but we expected 0 (0x0)

Using ExitProcess() rather than TerminateProcess() (which NaClExit()
uses) should prevent this flakiness.  If this works, we might consider
changing NaClExit() to use ExitProcess().

BUG=http://code.google.com/p/nativeclient/issues/detail?id=2870
TEST=run_multidomain_test (but I couldn't reproduce the flakiness)

Review URL: https://codereview.chromium.org/11137021

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@10002 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client