Read script ids for call stack frames from 'backtrace' response.
Read script ids for call stack frames from 'backtrace' response.

This change depends on v8 change http://codereview.chromium.org/65006/show
Review URL: http://codereview.chromium.org/65007

git-svn-id: http://src.chromium.org/svn/trunk/src@13430 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 21816baca0fc65a7d92c240902693560323dc314
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