Revert 55797 - Disable support of --enable-preconnect flag
Revert 55797 - Disable support of --enable-preconnect flag

The preconenct feature is still not fully implemented yet. We would like to
disable it for M6 as it is causing crashes. This is a temporary 'fix'.

BUG=48549
r=jar

Review URL: http://codereview.chromium.org/3140007

TBR=ziadh@chromium.org
Review URL: http://codereview.chromium.org/3161007

git-svn-id: http://src.chromium.org/svn/trunk/src@55806 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5d97e5a4c3ff251ab1dd2a9b67c1573552f3bf68
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser