Increase max web sockets to 18

Increase max sockets per group to 18 to match reference device
Since chromium project broke off of webkit this change needs
to be applied in the new location.  This only affects webviews
not chrome browser.

Change-Id: I441ae4a2ab235fc1bc4656bfc006c245744944d3
Reviewed-on: http://gerrit.pcs.mot.com/572621
SLTApproved: Slta Waiver <sltawvr@motorola.com>
Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Meeta Bhutani <meeta@motorola.com>
SLTApproved: Meeta Bhutani <meeta@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>
Submit-Approved: Meeta Bhutani <meeta@motorola.com>
Tested-by: Meeta Bhutani <meeta@motorola.com>