Chrome OS Version  :  
Chrome Version     :  <From about:version: Google Chrome x.x.x.x>
Type of computer   :  <Make/model of computer running Chrome OS>

Please specify Area-* of the system to which this bug/feature applies (add
the label below).

What steps will reproduce the problem?
1. run smoke_Suite on builder 'x86 pineview full'

What do you see instead?

See build output here:
http://build.chromium.org/p/chromiumos/builders/x86%20pineview%20full/builds/510/steps/VMTest/logs/stdio

22:10:10 INFO | 	START	login_CryptohomeUnmounted	login_CryptohomeUnmounted	timestamp=1317791410	localtime=Oct 04 22:10:10	
22:10:10 INFO | Bundling /build/x86-pineview/usr/local/autotest/client/site_tests/login_CryptohomeUnmounted into test-login_CryptohomeUnmounted.tar.bz2
22:11:05 INFO | 		ERROR	login_CryptohomeUnmounted	login_CryptohomeUnmounted	timestamp=1317791465	localtime=Oct 04 22:11:05	Unhandled JSONInterfaceError: Automation call {'username': 'performancetestaccount@gmail.com', 'password': 'perfsmurf', 'command': 'Login'} received empty response.  Perhaps the browser crashed.
22:11:05 INFO | 	END ERROR	login_CryptohomeUnmounted	login_CryptohomeUnmounted	timestamp=1317791465	localtime=Oct 04 22:11:05	

Attached is login_CryptohomeUnmounted.DEBUG

Looks similar to:
https://code.google.com/p/chromium-os/issues/detail?id=20887

login_CryptohomeUnmounted.DEBUG 14.7 KB   View   Download