Increased the unresponsive_threshold from 6 to 12 in Beta channel and XP. We will crash the browser if UI/IO threads don't respond within 24 secs (instead of 12 secs) in Beta channel and Windows XP.
Increased the unresponsive_threshold from 6 to 12
in Beta channel and XP. We will crash the browser
if UI/IO threads don't respond within 24 secs
(instead of 12 secs) in Beta channel and Windows XP.

BUG=90095
R=jar
TEST=thread_watcher unit tests

Review URL: http://codereview.chromium.org/7744015

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@98697 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,ropik/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,ropik/chromium,adobe/chromium,adobe/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,ropik/chromium,gavinp/chromium,ropik/chromium